156564446213 has 16 divisors (see below), whose sum is σ = 179430117120. Its totient is φ = 133823836800.

The previous prime is 156564446191. The next prime is 156564446221. The reversal of 156564446213 is 312644465651.

It is a cyclic number.

It is not a de Polignac number, because 156564446213 - 2⁸ = 156564445957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156564446243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10244768 + ... + 10260038.

It is an arithmetic number, because the mean of its divisors is an integer number (11214382320).

Almost surely, 2^156564446213 is an apocalyptic number.

It is an amenable number.

156564446213 is a deficient number, since it is larger than the sum of its proper divisors (22865670907).

156564446213 is a wasteful number, since it uses less digits than its factorization.

156564446213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19268.

The product of its digits is 2073600, while the sum is 47.

The spelling of 156564446213 in words is "one hundred fifty-six billion, five hundred sixty-four million, four hundred forty-six thousand, two hundred thirteen".