16615667600056 has 64 divisors (see below), whose sum is σ = 38468789784000. Its totient is φ = 6702118004736.

The previous prime is 16615667599997. The next prime is 16615667600057. The reversal of 16615667600056 is 65000676651661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16615667600057) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 178049601 + ... + 178142896.

It is an arithmetic number, because the mean of its divisors is an integer number (601074840375).

Almost surely, 2^{16615667600056} is an apocalyptic number.

It is an amenable number.

16615667600056 is an abundant number, since it is smaller than the sum of its proper divisors (21853122183944).

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

16615667600056 is a wasteful number, since it uses less digits than its factorization.

16615667600056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356192541 (or 356192523 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 55.

The spelling of 16615667600056 in words is "sixteen trillion, six hundred fifteen billion, six hundred sixty-seven million, six hundred thousand, fifty-six".