16161696 has 72 divisors (see below), whose sum is σ = 48678084. Its totient is φ = 5068800.

The previous prime is 16161653. The next prime is 16161727. The reversal of 16161696 is 69616161.

It can be written as a sum of positive squares in 2 ways, for example, as 16160400 + 1296 = 4020^2 + 36^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×16161696² = 522400835192832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 16161696.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3246 + ... + 6546.

Almost surely, 2^16161696 is an apocalyptic number.

16161696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16161696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24339042).

16161696 is an abundant number, since it is smaller than the sum of its proper divisors (32516388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16161696 is a wasteful number, since it uses less digits than its factorization.

16161696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334 (or 3323 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 16161696 is about 4020.1611907982. The cubic root of 16161696 is about 252.8302172393.

The spelling of 16161696 in words is "sixteen million, one hundred sixty-one thousand, six hundred ninety-six".