16556064064325 has 24 divisors (see below), whose sum is σ = 20540116776960. Its totient is φ = 13238016062400.

The previous prime is 16556064064271. The next prime is 16556064064357. The reversal of 16556064064325 is 52346046065561.

It is a de Polignac number, because none of the positive numbers 2^k-16556064064325 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 458484371 + ... + 458520479.

It is an arithmetic number, because the mean of its divisors is an integer number (855838199040).

Almost surely, 2^{16556064064325} is an apocalyptic number.

It is an amenable number.

16556064064325 is a deficient number, since it is larger than the sum of its proper divisors (3984052712635).

16556064064325 is a wasteful number, since it uses less digits than its factorization.

16556064064325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45077 (or 45072 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 53.

The spelling of 16556064064325 in words is "sixteen trillion, five hundred fifty-six billion, sixty-four million, sixty-four thousand, three hundred twenty-five".