155155165 has 16 divisors (see below), whose sum is σ = 203886720. Its totient is φ = 112409920.

The previous prime is 155155163. The next prime is 155155177. The reversal of 155155165 is 561551551.

It is not a de Polignac number, because 155155165 - 2¹ = 155155163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155155165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155155163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9552 + ... + 20038.

It is an arithmetic number, because the mean of its divisors is an integer number (12742920).

Almost surely, 2^155155165 is an apocalyptic number.

It is an amenable number.

155155165 is a deficient number, since it is larger than the sum of its proper divisors (48731555).

155155165 is a wasteful number, since it uses less digits than its factorization.

155155165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10772.

The product of its digits is 18750, while the sum is 34.

The square root of 155155165 is about 12456.1296155748. The cubic root of 155155165 is about 537.3477225019.

The spelling of 155155165 in words is "one hundred fifty-five million, one hundred fifty-five thousand, one hundred sixty-five".