16564002070025 has 6 divisors (see below), whose sum is σ = 20539362566862. Its totient is φ = 13251201656000.

The previous prime is 16564002069961. The next prime is 16564002070061. The reversal of 16564002070025 is 52007020046561.

16564002070025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 2621044433296 + 13942957636729 = 1618964^2 + 3734027^2 .

It is not a de Polignac number, because 16564002070025 - 2⁶ = 16564002069961 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 331280041376 + ... + 331280041425.

It is an arithmetic number, because the mean of its divisors is an integer number (3423227094477).

Almost surely, 2^{16564002070025} is an apocalyptic number.

It is an amenable number.

16564002070025 is a deficient number, since it is larger than the sum of its proper divisors (3975360496837).

16564002070025 is an equidigital number, since it uses as much as digits as its factorization.

16564002070025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662560082811 (or 662560082806 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 16564002070025 in words is "sixteen trillion, five hundred sixty-four billion, two million, seventy thousand, twenty-five".