120571515215640 has 48 divisors (see below), whose sum is σ = 391857424452000. Its totient is φ = 32152404057408.

The previous prime is 120571515215621. The next prime is 120571515215693. The reversal of 120571515215640 is 46512515175021.

120571515215640 is a `hidden beast` number, since 1 + 2 + 0 + 5 + 71 + 5 + 1 + 521 + 56 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 167460437440 + ... + 167460438159.

It is an arithmetic number, because the mean of its divisors is an integer number (8163696342750).

Almost surely, 2^{120571515215640} is an apocalyptic number.

120571515215640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120571515215640 is an abundant number, since it is smaller than the sum of its proper divisors (271285909236360).

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

120571515215640 is a wasteful number, since it uses less digits than its factorization.

120571515215640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334920875616 (or 334920875609 counting only the distinct ones).

The product of its (nonzero) digits is 420000, while the sum is 45.

The spelling of 120571515215640 in words is "one hundred twenty trillion, five hundred seventy-one billion, five hundred fifteen million, two hundred fifteen thousand, six hundred forty".