165015550161054 has 80 divisors (see below), whose sum is σ = 378367483641840. Its totient is φ = 53724372024960.

The previous prime is 165015550161041. The next prime is 165015550161113. The reversal of 165015550161054 is 450161055510561.

165015550161054 is a `hidden beast` number, since 1 + 65 + 0 + 15 + 550 + 16 + 10 + 5 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 242362452 + ... + 243042360.

It is an arithmetic number, because the mean of its divisors is an integer number (4729593545523).

Almost surely, 2^{165015550161054} is an apocalyptic number.

165015550161054 is an abundant number, since it is smaller than the sum of its proper divisors (213351933480786).

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

165015550161054 is a wasteful number, since it uses less digits than its factorization.

165015550161054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714807 (or 714798 counting only the distinct ones).

The product of its (nonzero) digits is 450000, while the sum is 45.

The spelling of 165015550161054 in words is "one hundred sixty-five trillion, fifteen billion, five hundred fifty million, one hundred sixty-one thousand, fifty-four".