16556114212656 has 40 divisors (see below), whose sum is σ = 43925906631984. Its totient is φ = 5369550554880.

The previous prime is 16556114212633. The next prime is 16556114212669. The reversal of 16556114212656 is 65621241165561.

It is a junction number, because it is equal to n+sod(n) for n = 16556114212599 and 16556114212608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4661066415 + ... + 4661069966.

Almost surely, 2^{16556114212656} is an apocalyptic number.

16556114212656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16556114212656 is an abundant number, since it is smaller than the sum of its proper divisors (27369792419328).

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

16556114212656 is a wasteful number, since it uses less digits than its factorization.

16556114212656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9322136429 (or 9322136423 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 51.

The spelling of 16556114212656 in words is "sixteen trillion, five hundred fifty-six billion, one hundred fourteen million, two hundred twelve thousand, six hundred fifty-six".