56564036166 has 64 divisors (see below), whose sum is σ = 124398084096. Its totient is φ = 17004036000.

The previous prime is 56564036161. The next prime is 56564036189. The reversal of 56564036166 is 66163046565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56564036161) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 8238451 + ... + 8245313.

It is an arithmetic number, because the mean of its divisors is an integer number (1943720064).

Almost surely, 2^56564036166 is an apocalyptic number.

56564036166 is an abundant number, since it is smaller than the sum of its proper divisors (67834047930).

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

56564036166 is a wasteful number, since it uses less digits than its factorization.

56564036166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7857.

The product of its (nonzero) digits is 2332800, while the sum is 48.

The spelling of 56564036166 in words is "fifty-six billion, five hundred sixty-four million, thirty-six thousand, one hundred sixty-six".