36557642568 has 16 divisors (see below), whose sum is σ = 91394106480. Its totient is φ = 12185880848.

The previous prime is 36557642489. The next prime is 36557642587. The reversal of 36557642568 is 86524675563.

It is a super-2 number, since 2×36557642568² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761617530 + ... + 761617577.

It is an arithmetic number, because the mean of its divisors is an integer number (5712131655).

Almost surely, 2^36557642568 is an apocalyptic number.

It is an amenable number.

36557642568 is an abundant number, since it is smaller than the sum of its proper divisors (54836463912).

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

36557642568 is a wasteful number, since it uses less digits than its factorization.

36557642568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523235116 (or 1523235112 counting only the distinct ones).

The product of its digits is 36288000, while the sum is 57.

The spelling of 36557642568 in words is "thirty-six billion, five hundred fifty-seven million, six hundred forty-two thousand, five hundred sixty-eight".