120291806658408 has 128 divisors (see below), whose sum is σ = 375260690488320. Its totient is φ = 31217526005760.

The previous prime is 120291806658403. The next prime is 120291806658427. The reversal of 120291806658408 is 804856608192021.

It is a super-2 number, since 2×120291806658408² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120291806658403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26096910 + ... + 30358397.

It is an arithmetic number, because the mean of its divisors is an integer number (2931724144440).

Almost surely, 2^{120291806658408} is an apocalyptic number.

It is an amenable number.

120291806658408 is an abundant number, since it is smaller than the sum of its proper divisors (254968883829912).

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

120291806658408 is a wasteful number, since it uses less digits than its factorization.

120291806658408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56456487 (or 56456483 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 60.

The spelling of 120291806658408 in words is "one hundred twenty trillion, two hundred ninety-one billion, eight hundred six million, six hundred fifty-eight thousand, four hundred eight".