36636541065 has 48 divisors (see below), whose sum is σ = 63834039360. Its totient is φ = 19437936000.

The previous prime is 36636541063. The next prime is 36636541079. The reversal of 36636541065 is 56014563663.

36636541065 is a `hidden beast` number, since 3 + 6 + 636 + 5 + 4 + 1 + 0 + 6 + 5 = 666.

It is not a de Polignac number, because 36636541065 - 2¹ = 36636541063 is a prime.

It is a super-2 number, since 2×36636541065² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 36636541065.

It is not an unprimeable number, because it can be changed into a prime (36636541061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13134691 + ... + 13137479.

It is an arithmetic number, because the mean of its divisors is an integer number (1329875820).

Almost surely, 2^36636541065 is an apocalyptic number.

It is an amenable number.

36636541065 is a deficient number, since it is larger than the sum of its proper divisors (27197498295).

36636541065 is a wasteful number, since it uses less digits than its factorization.

36636541065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214 (or 4211 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The spelling of 36636541065 in words is "thirty-six billion, six hundred thirty-six million, five hundred forty-one thousand, sixty-five".