16401696 has 24 divisors (see below), whose sum is σ = 43054704. Its totient is φ = 5467200.

The previous prime is 16401641. The next prime is 16401701. The reversal of 16401696 is 69610461.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85330 + ... + 85521.

It is an arithmetic number, because the mean of its divisors is an integer number (1793946).

Almost surely, 2^16401696 is an apocalyptic number.

16401696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16401696 is an abundant number, since it is smaller than the sum of its proper divisors (26653008).

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

16401696 is a wasteful number, since it uses less digits than its factorization.

16401696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170864 (or 170856 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 16401696 is about 4049.9007395244. The cubic root of 16401696 is about 254.0755763283.

The spelling of 16401696 in words is "sixteen million, four hundred one thousand, six hundred ninety-six".