36564621775 has 12 divisors (see below), whose sum is σ = 49461961464. Its totient is φ = 26592452000.

The previous prime is 36564621761. The next prime is 36564621791. The reversal of 36564621775 is 57712646563.

It is not a de Polignac number, because 36564621775 - 2⁹ = 36564621263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66480856 + ... + 66481405.

It is an arithmetic number, because the mean of its divisors is an integer number (4121830122).

Almost surely, 2^36564621775 is an apocalyptic number.

36564621775 is a deficient number, since it is larger than the sum of its proper divisors (12897339689).

36564621775 is a wasteful number, since it uses less digits than its factorization.

36564621775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132962282 (or 132962277 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 52.

The spelling of 36564621775 in words is "thirty-six billion, five hundred sixty-four million, six hundred twenty-one thousand, seven hundred seventy-five".