36543620556 has 48 divisors (see below), whose sum is σ = 95084829280. Its totient is φ = 12137221440.

The previous prime is 36543620543. The next prime is 36543620557. The reversal of 36543620556 is 65502634563.

36543620556 is a `hidden beast` number, since 3 + 6 + 5 + 436 + 205 + 5 + 6 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (36543620557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 580855 + ... + 640686.

Almost surely, 2^36543620556 is an apocalyptic number.

36543620556 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

36543620556 is an abundant number, since it is smaller than the sum of its proper divisors (58541208724).

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

36543620556 is a wasteful number, since it uses less digits than its factorization.

36543620556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221831 (or 1221823 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 45.

The spelling of 36543620556 in words is "thirty-six billion, five hundred forty-three million, six hundred twenty thousand, five hundred fifty-six".