120009535644 has 24 divisors (see below), whose sum is σ = 282066211728. Its totient is φ = 39711184000.

The previous prime is 120009535637. The next prime is 120009535651. The reversal of 120009535644 is 446535900021.

It is an interprime number because it is at equal distance from previous prime (120009535637) and next prime (120009535651).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36497607 + ... + 36500894.

It is an arithmetic number, because the mean of its divisors is an integer number (11752758822).

Almost surely, 2^120009535644 is an apocalyptic number.

It is an amenable number.

120009535644 is an abundant number, since it is smaller than the sum of its proper divisors (162056676084).

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

120009535644 is a wasteful number, since it uses less digits than its factorization.

120009535644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72998645 (or 72998643 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 120009535644 in words is "one hundred twenty billion, nine million, five hundred thirty-five thousand, six hundred forty-four".