242117157918160 has 80 divisors (see below), whose sum is σ = 643461338267136. Its totient is φ = 82995924547584.

The previous prime is 242117157918071. The next prime is 242117157918187. The reversal of 242117157918160 is 61819751711242.

It is a tau number, because it is divible by the number of its divisors (80).

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, 37844712 + ... + 43777351.

Almost surely, 2^{242117157918160} is an apocalyptic number.

242117157918160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242117157918160 is an abundant number, since it is smaller than the sum of its proper divisors (401344180348976).

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

242117157918160 is a wasteful number, since it uses less digits than its factorization.

242117157918160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81627380 (or 81627374 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 55.

The spelling of 242117157918160 in words is "two hundred forty-two trillion, one hundred seventeen billion, one hundred fifty-seven million, nine hundred eighteen thousand, one hundred sixty".