117161477388 has 72 divisors (see below), whose sum is σ = 297609865280. Its totient is φ = 38862581760.

The previous prime is 117161477359. The next prime is 117161477467. The reversal of 117161477388 is 883774161711.

117161477388 is a `hidden beast` number, since 1 + 1 + 7 + 161 + 477 + 3 + 8 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28497453 + ... + 28501563.

Almost surely, 2^117161477388 is an apocalyptic number.

117161477388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

117161477388 is an abundant number, since it is smaller than the sum of its proper divisors (180448387892).

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

117161477388 is a wasteful number, since it uses less digits than its factorization.

117161477388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7807 (or 7802 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 54.

The spelling of 117161477388 in words is "one hundred seventeen billion, one hundred sixty-one million, four hundred seventy-seven thousand, three hundred eighty-eight".