16157680 has 160 divisors (see below), whose sum is σ = 48711168. Its totient is φ = 4838400.

The previous prime is 16157639. The next prime is 16157699. The reversal of 16157680 is 8675161.

It is a super-2 number, since 2×16157680² = 522141245964800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 264850 + ... + 264910.

Almost surely, 2^16157680 is an apocalyptic number.

16157680 is a gapful number since it is divisible by the number (10) 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 16157680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24355584).

16157680 is an abundant number, since it is smaller than the sum of its proper divisors (32553488).

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

16157680 is a wasteful number, since it uses less digits than its factorization.

16157680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 16157680 is about 4019.6616773057. The cubic root of 16157680 is about 252.8092736811.

The spelling of 16157680 in words is "sixteen million, one hundred fifty-seven thousand, six hundred eighty".