16256957772 has 48 divisors (see below), whose sum is σ = 41655446784. Its totient is φ = 4893720000.

The previous prime is 16256957753. The next prime is 16256957797. The reversal of 16256957772 is 27775965261.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387879 + ... + 427742.

It is an arithmetic number, because the mean of its divisors is an integer number (867821808).

Almost surely, 2^16256957772 is an apocalyptic number.

16256957772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16256957772 is an abundant number, since it is smaller than the sum of its proper divisors (25398489012).

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

16256957772 is a wasteful number, since it uses less digits than its factorization.

16256957772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815790 (or 815788 counting only the distinct ones).

The product of its digits is 11113200, while the sum is 57.

The spelling of 16256957772 in words is "sixteen billion, two hundred fifty-six million, nine hundred fifty-seven thousand, seven hundred seventy-two".