36556020646 has 32 divisors (see below), whose sum is σ = 58881401280. Its totient is φ = 16976969856.

The previous prime is 36556020629. The next prime is 36556020661. The reversal of 36556020646 is 64602065563.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 845220 + ... + 887416.

It is an arithmetic number, because the mean of its divisors is an integer number (1840043790).

Almost surely, 2^36556020646 is an apocalyptic number.

36556020646 is a deficient number, since it is larger than the sum of its proper divisors (22325380634).

36556020646 is a wasteful number, since it uses less digits than its factorization.

36556020646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42768.

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 36556020646 in words is "thirty-six billion, five hundred fifty-six million, twenty thousand, six hundred forty-six".