165156255 has 48 divisors (see below), whose sum is σ = 315263520. Its totient is φ = 79315200.

The previous prime is 165156221. The next prime is 165156259. The reversal of 165156255 is 552651561.

165156255 is a `hidden beast` number, since 16 + 5 + 15 + 625 + 5 = 666.

It is not a de Polignac number, because 165156255 - 2⁶ = 165156191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165156259) 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, 52425 + ... + 55485.

It is an arithmetic number, because the mean of its divisors is an integer number (6567990).

Almost surely, 2^165156255 is an apocalyptic number.

165156255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165156255 is a deficient number, since it is larger than the sum of its proper divisors (150107265).

165156255 is a wasteful number, since it uses less digits than its factorization.

165156255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3192 (or 3189 counting only the distinct ones).

The product of its digits is 45000, while the sum is 36.

The square root of 165156255 is about 12851.3133570075. The cubic root of 165156255 is about 548.6537376786.

The spelling of 165156255 in words is "one hundred sixty-five million, one hundred fifty-six thousand, two hundred fifty-five".