120440644562400 has 72 divisors (see below), whose sum is σ = 392034298058424. Its totient is φ = 32117505216000.

The previous prime is 120440644562389. The next prime is 120440644562453. The reversal of 120440644562400 is 4265446044021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25091798551 + ... + 25091803350.

It is an arithmetic number, because the mean of its divisors is an integer number (5444920806367).

Almost surely, 2^{120440644562400} is an apocalyptic number.

120440644562400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120440644562400 is an abundant number, since it is smaller than the sum of its proper divisors (271593653496024).

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

120440644562400 is a wasteful number, since it uses less digits than its factorization.

120440644562400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50183601924 (or 50183601911 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 42.

The spelling of 120440644562400 in words is "one hundred twenty trillion, four hundred forty billion, six hundred forty-four million, five hundred sixty-two thousand, four hundred".