56566115065999 has 48 divisors (see below), whose sum is σ = 74714210075520. Its totient is φ = 42296487387840.

The previous prime is 56566115065961. The next prime is 56566115066023. The reversal of 56566115065999 is 99956051166565.

56566115065999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56566115065999 - 2⁷ = 56566115065871 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 (56566115065799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8552889 + ... + 13648594.

It is an arithmetic number, because the mean of its divisors is an integer number (1556546043240).

Almost surely, 2^{56566115065999} is an apocalyptic number.

56566115065999 is a deficient number, since it is larger than the sum of its proper divisors (18148095009521).

56566115065999 is a wasteful number, since it uses less digits than its factorization.

56566115065999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22201700 (or 22201693 counting only the distinct ones).

The product of its (nonzero) digits is 590490000, while the sum is 73.

The spelling of 56566115065999 in words is "fifty-six trillion, five hundred sixty-six billion, one hundred fifteen million, sixty-five thousand, nine hundred ninety-nine".