155166708255 has 32 divisors (see below), whose sum is σ = 267476428800. Its totient is φ = 76357691520.

The previous prime is 155166708253. The next prime is 155166708289. The reversal of 155166708255 is 552807661551.

It is a happy number.

It is not a de Polignac number, because 155166708255 - 2¹ = 155166708253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155166708198 and 155166708207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155166708253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 301960 + ... + 633650.

It is an arithmetic number, because the mean of its divisors is an integer number (8358638400).

Almost surely, 2^155166708255 is an apocalyptic number.

155166708255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155166708255 is a deficient number, since it is larger than the sum of its proper divisors (112309720545).

155166708255 is a wasteful number, since it uses less digits than its factorization.

155166708255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334111.

The product of its (nonzero) digits is 2520000, while the sum is 51.

The spelling of 155166708255 in words is "one hundred fifty-five billion, one hundred sixty-six million, seven hundred eight thousand, two hundred fifty-five".