165677591053040 has 40 divisors (see below), whose sum is σ = 420218617309488. Its totient is φ = 60246396746240.

The previous prime is 165677591053001. The next prime is 165677591053067. The reversal of 165677591053040 is 40350195776561.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94134994037 + ... + 94134995796.

Almost surely, 2^{165677591053040} is an apocalyptic number.

165677591053040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165677591053040 is an abundant number, since it is smaller than the sum of its proper divisors (254541026256448).

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

165677591053040 is a wasteful number, since it uses less digits than its factorization.

165677591053040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188269989857 (or 188269989851 counting only the distinct ones).

The product of its (nonzero) digits is 23814000, while the sum is 59.

The spelling of 165677591053040 in words is "one hundred sixty-five trillion, six hundred seventy-seven billion, five hundred ninety-one million, fifty-three thousand, forty".