20112564460400 has 30 divisors (see below), whose sum is σ = 48320436117072. Its totient is φ = 8045025784000.

The previous prime is 20112564460379. The next prime is 20112564460403. The reversal of 20112564460400 is 406446521102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112564460403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25140705176 + ... + 25140705975.

Almost surely, 2^{20112564460400} is an apocalyptic number.

20112564460400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112564460400 is an abundant number, since it is smaller than the sum of its proper divisors (28207871656672).

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

20112564460400 is a wasteful number, since it uses less digits than its factorization.

20112564460400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50281411169 (or 50281411158 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 20112564460400 in words is "twenty trillion, one hundred twelve billion, five hundred sixty-four million, four hundred sixty thousand, four hundred".