16550256172 has 12 divisors (see below), whose sum is σ = 29219258376. Its totient is φ = 8201896640.

The previous prime is 16550256167. The next prime is 16550256193. The reversal of 16550256172 is 27165205561.

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, 18307354 + ... + 18308257.

It is an arithmetic number, because the mean of its divisors is an integer number (2434938198).

Almost surely, 2^16550256172 is an apocalyptic number.

It is an amenable number.

16550256172 is a deficient number, since it is larger than the sum of its proper divisors (12669002204).

16550256172 is a wasteful number, since it uses less digits than its factorization.

16550256172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36615728 (or 36615726 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 16550256172 in words is "sixteen billion, five hundred fifty million, two hundred fifty-six thousand, one hundred seventy-two".