56081637369 has 24 divisors (see below), whose sum is σ = 82921692672. Its totient is φ = 36507646080.

The previous prime is 56081637361. The next prime is 56081637377. The reversal of 56081637369 is 96373618065.

56081637369 is a `hidden beast` number, since 560 + 8 + 1 + 6 + 3 + 73 + 6 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (56081637361) and next prime (56081637377).

It is not a de Polignac number, because 56081637369 - 2³ = 56081637361 is a prime.

It is a super-2 number, since 2×56081637369² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56081637361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30064 + ... + 336254.

It is an arithmetic number, because the mean of its divisors is an integer number (3455070528).

Almost surely, 2^56081637369 is an apocalyptic number.

It is an amenable number.

56081637369 is a deficient number, since it is larger than the sum of its proper divisors (26840055303).

56081637369 is a wasteful number, since it uses less digits than its factorization.

56081637369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306677 (or 306674 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 56081637369 in words is "fifty-six billion, eighty-one million, six hundred thirty-seven thousand, three hundred sixty-nine".