155072160165 has 32 divisors (see below), whose sum is σ = 267252725376. Its totient is φ = 76328513280.

The previous prime is 155072160163. The next prime is 155072160193. The reversal of 155072160165 is 561061270551.

It is a happy number.

It is not a de Polignac number, because 155072160165 - 2¹ = 155072160163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155072160163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 975402 + ... + 1123188.

It is an arithmetic number, because the mean of its divisors is an integer number (8351647668).

Almost surely, 2^155072160165 is an apocalyptic number.

155072160165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155072160165 is a deficient number, since it is larger than the sum of its proper divisors (112180565211).

155072160165 is a wasteful number, since it uses less digits than its factorization.

155072160165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153189.

The product of its (nonzero) digits is 63000, while the sum is 39.

The spelling of 155072160165 in words is "one hundred fifty-five billion, seventy-two million, one hundred sixty thousand, one hundred sixty-five".