165979276848018 has 12 divisors (see below), whose sum is σ = 359621766504078. Its totient is φ = 55326425616000.

The previous prime is 165979276847959. The next prime is 165979276848037. The reversal of 165979276848018 is 810848672979561.

165979276848018 is a `hidden beast` number, since 1 + 6 + 5 + 9 + 79 + 2 + 7 + 68 + 480 + 1 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 115273441483209 + 50705835364809 = 10736547^2 + 7120803^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4610535467983 + ... + 4610535468018.

Almost surely, 2^{165979276848018} is an apocalyptic number.

165979276848018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

165979276848018 is an abundant number, since it is smaller than the sum of its proper divisors (193642489656060).

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

165979276848018 is a wasteful number, since it uses less digits than its factorization.

165979276848018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9221070936009 (or 9221070936006 counting only the distinct ones).

The product of its (nonzero) digits is 2926264320, while the sum is 81.

The spelling of 165979276848018 in words is "one hundred sixty-five trillion, nine hundred seventy-nine billion, two hundred seventy-six million, eight hundred forty-eight thousand, eighteen".