165156516166050 has 96 divisors (see below), whose sum is σ = 455359362456960. Its totient is φ = 44016440212800.

The previous prime is 165156516165947. The next prime is 165156516166051. The reversal of 165156516166050 is 50661615651561.

165156516166050 is a `hidden beast` number, since 1 + 6 + 5 + 1 + 5 + 6 + 5 + 16 + 16 + 605 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (165156516166051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32784102 + ... + 37484801.

It is an arithmetic number, because the mean of its divisors is an integer number (4743326692260).

Almost surely, 2^{165156516166050} is an apocalyptic number.

165156516166050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165156516166050 is an abundant number, since it is smaller than the sum of its proper divisors (290202846290910).

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

165156516166050 is a wasteful number, since it uses less digits than its factorization.

165156516166050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70270665 (or 70270654 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 54.

The spelling of 165156516166050 in words is "one hundred sixty-five trillion, one hundred fifty-six billion, five hundred sixteen million, one hundred sixty-six thousand, fifty".