36520456640 has 56 divisors (see below), whose sum is σ = 86982129312. Its totient is φ = 14605194240.

The previous prime is 36520456633. The next prime is 36520456667. The reversal of 36520456640 is 4665402563.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2221250 + ... + 2237630.

Almost surely, 2^36520456640 is an apocalyptic number.

It is an amenable number.

36520456640 is an abundant number, since it is smaller than the sum of its proper divisors (50461672672).

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

36520456640 is a wasteful number, since it uses less digits than its factorization.

36520456640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23365 (or 23355 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 36520456640 in words is "thirty-six billion, five hundred twenty million, four hundred fifty-six thousand, six hundred forty".