12020559264 has 108 divisors (see below), whose sum is σ = 39764486034. Its totient is φ = 3434441472.

The previous prime is 12020559263. The next prime is 12020559301. The reversal of 12020559264 is 46295502021.

12020559264 is a `hidden beast` number, since 1 + 2 + 0 + 2 + 0 + 5 + 592 + 64 = 666.

12020559264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11833088400 + 187470864 = 108780^2 + 13692^2 .

It is a super-4 number, since 4×12020559264⁴ (a number of 41 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12020559263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 411787 + ... + 440010.

Almost surely, 2^12020559264 is an apocalyptic number.

12020559264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12020559264 is an abundant number, since it is smaller than the sum of its proper divisors (27743926770).

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

12020559264 is a wasteful number, since it uses less digits than its factorization.

12020559264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851827 (or 851809 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 12020559264 in words is "twelve billion, twenty million, five hundred fifty-nine thousand, two hundred sixty-four".