165179156480 has 192 divisors, whose sum is σ = 434075241600. Its totient is φ = 59952660480.

The previous prime is 165179156453. The next prime is 165179156537. The reversal of 165179156480 is 84651971561.

It is a super-3 number, since 3×165179156480³ (a number of 35 digits) contains 333 as substring.

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, 7843565 + ... + 7864595.

It is an arithmetic number, because the mean of its divisors is an integer number (2260808550).

Almost surely, 2^165179156480 is an apocalyptic number.

165179156480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165179156480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217037620800).

165179156480 is an abundant number, since it is smaller than the sum of its proper divisors (268896085120).

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

165179156480 is a wasteful number, since it uses less digits than its factorization.

165179156480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21130 (or 21110 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 53.

The spelling of 165179156480 in words is "one hundred sixty-five billion, one hundred seventy-nine million, one hundred fifty-six thousand, four hundred eighty".