165660051020430 has 64 divisors (see below), whose sum is σ = 402056207772480. Its totient is φ = 43679127207936.

The previous prime is 165660051020411. The next prime is 165660051020461. The reversal of 165660051020430 is 34020150066561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 253304734 + ... + 253957886.

It is an arithmetic number, because the mean of its divisors is an integer number (6282128246445).

Almost surely, 2^{165660051020430} is an apocalyptic number.

165660051020430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165660051020430 is an abundant number, since it is smaller than the sum of its proper divisors (236396156752050).

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

165660051020430 is a wasteful number, since it uses less digits than its factorization.

165660051020430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748245.

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 165660051020430 in words is "one hundred sixty-five trillion, six hundred sixty billion, fifty-one million, twenty thousand, four hundred thirty".