16516155515056 has 20 divisors (see below), whose sum is σ = 32864917563232. Its totient is φ = 8034886466496.

The previous prime is 16516155515033. The next prime is 16516155515099. The reversal of 16516155515056 is 65051555161561.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16516155514994 and 16516155515012.

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, 13949455080 + ... + 13949456263.

Almost surely, 2^{16516155515056} is an apocalyptic number.

16516155515056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16516155515056 is a deficient number, since it is larger than the sum of its proper divisors (16348762048176).

16516155515056 is a wasteful number, since it uses less digits than its factorization.

16516155515056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27898911388 (or 27898911382 counting only the distinct ones).

The product of its (nonzero) digits is 3375000, while the sum is 52.

The spelling of 16516155515056 in words is "sixteen trillion, five hundred sixteen billion, one hundred fifty-five million, five hundred fifteen thousand, fifty-six".