156550155 has 16 divisors (see below), whose sum is σ = 258561024. Its totient is φ = 80799840.

The previous prime is 156550153. The next prime is 156550169. The reversal of 156550155 is 551055651.

It is not a de Polignac number, because 156550155 - 2¹ = 156550153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (156550153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167869 + ... + 168798.

It is an arithmetic number, because the mean of its divisors is an integer number (16160064).

Almost surely, 2^156550155 is an apocalyptic number.

156550155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

156550155 is a deficient number, since it is larger than the sum of its proper divisors (102010869).

156550155 is a wasteful number, since it uses less digits than its factorization.

156550155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336706.

The product of its (nonzero) digits is 18750, while the sum is 33.

The square root of 156550155 is about 12512.0004395780. Note that the first 3 decimals coincide. The cubic root of 156550155 is about 538.9533395516.

The spelling of 156550155 in words is "one hundred fifty-six million, five hundred fifty thousand, one hundred fifty-five".