36561140645256 has 48 divisors (see below), whose sum is σ = 99047392604160. Its totient is φ = 12183645443040.

The previous prime is 36561140645251. The next prime is 36561140645273. The reversal of 36561140645256 is 65254604116563.

36561140645256 is a `hidden beast` number, since 3 + 6 + 5 + 6 + 11 + 40 + 64 + 525 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (36561140645251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70603540 + ... + 71119491.

It is an arithmetic number, because the mean of its divisors is an integer number (2063487345920).

Almost surely, 2^{36561140645256} is an apocalyptic number.

36561140645256 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

36561140645256 is an abundant number, since it is smaller than the sum of its proper divisors (62486251958904).

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

36561140645256 is a wasteful number, since it uses less digits than its factorization.

36561140645256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141726626 (or 141726619 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 54.

The spelling of 36561140645256 in words is "thirty-six trillion, five hundred sixty-one billion, one hundred forty million, six hundred forty-five thousand, two hundred fifty-six".