165320761223160 has 96 divisors (see below), whose sum is σ = 547430067887040. Its totient is φ = 43253733748992.

The previous prime is 165320761223147. The next prime is 165320761223197. The reversal of 165320761223160 is 61322167023561.

165320761223160 is a `hidden beast` number, since 1 + 6 + 5 + 3 + 2 + 0 + 7 + 612 + 23 + 1 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 4332285984 + ... + 4332324143.

It is an arithmetic number, because the mean of its divisors is an integer number (5702396540490).

Almost surely, 2^{165320761223160} is an apocalyptic number.

165320761223160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165320761223160 is an abundant number, since it is smaller than the sum of its proper divisors (382109306663880).

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

165320761223160 is a wasteful number, since it uses less digits than its factorization.

165320761223160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8664610197 (or 8664610190 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 165320761223160 in words is "one hundred sixty-five trillion, three hundred twenty billion, seven hundred sixty-one million, two hundred twenty-three thousand, one hundred sixty".