16564635316057 has 8 divisors (see below), whose sum is σ = 16719603875136. Its totient is φ = 16409669699472.

The previous prime is 16564635316039. The next prime is 16564635316157. The reversal of 16564635316057 is 75061353646561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16564635316057 - 2⁷ = 16564635315929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16564635315992 and 16564635316010.

It is not an unprimeable number, because it can be changed into a prime (16564635316157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11527708 + ... + 12884770.

It is an arithmetic number, because the mean of its divisors is an integer number (2089950484392).

Almost surely, 2^{16564635316057} is an apocalyptic number.

It is an amenable number.

16564635316057 is a deficient number, since it is larger than the sum of its proper divisors (154968559079).

16564635316057 is a wasteful number, since it uses less digits than its factorization.

16564635316057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471247.

The product of its (nonzero) digits is 40824000, while the sum is 58.

The spelling of 16564635316057 in words is "sixteen trillion, five hundred sixty-four billion, six hundred thirty-five million, three hundred sixteen thousand, fifty-seven".