117204155420 has 48 divisors (see below), whose sum is σ = 269502357600. Its totient is φ = 42461233920.

The previous prime is 117204155407. The next prime is 117204155437. The reversal of 117204155420 is 24551402711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 931055 + ... + 1049414.

It is an arithmetic number, because the mean of its divisors is an integer number (5614632450).

Almost surely, 2^117204155420 is an apocalyptic number.

117204155420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117204155420 is an abundant number, since it is smaller than the sum of its proper divisors (152298202180).

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

117204155420 is a wasteful number, since it uses less digits than its factorization.

117204155420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980758 (or 1980756 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The spelling of 117204155420 in words is "one hundred seventeen billion, two hundred four million, one hundred fifty-five thousand, four hundred twenty".