36618955520 has 144 divisors (see below), whose sum is σ = 101220188160. Its totient is φ = 12432863232.

The previous prime is 36618955507. The next prime is 36618955543. The reversal of 36618955520 is 2555981663.

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 15 ways as a sum of consecutive naturals, for example, 903041 + ... + 942719.

Almost surely, 2^36618955520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36618955520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50610094080).

36618955520 is an abundant number, since it is smaller than the sum of its proper divisors (64601232640).

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

36618955520 is a wasteful number, since it uses less digits than its factorization.

36618955520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39810 (or 39796 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 50.

The spelling of 36618955520 in words is "thirty-six billion, six hundred eighteen million, nine hundred fifty-five thousand, five hundred twenty".