16515457272156 has 48 divisors (see below), whose sum is σ = 38555722033920. Its totient is φ = 5502344964480.

The previous prime is 16515457272137. The next prime is 16515457272161. The reversal of 16515457272156 is 65127275451561.

It is a junction number, because it is equal to n+sod(n) for n = 16515457272096 and 16515457272105.

It is a congruent number.

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, 664834296 + ... + 664859136.

It is an arithmetic number, because the mean of its divisors is an integer number (803244209040).

Almost surely, 2^{16515457272156} is an apocalyptic number.

It is an amenable number.

16515457272156 is an abundant number, since it is smaller than the sum of its proper divisors (22040264761764).

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

16515457272156 is a wasteful number, since it uses less digits than its factorization.

16515457272156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50874 (or 50872 counting only the distinct ones).

The product of its digits is 17640000, while the sum is 57.

The spelling of 16515457272156 in words is "sixteen trillion, five hundred fifteen billion, four hundred fifty-seven million, two hundred seventy-two thousand, one hundred fifty-six".