165600255 has 8 divisors (see below), whose sum is σ = 264960432. Its totient is φ = 88320128.

The previous prime is 165600229. The next prime is 165600269. The reversal of 165600255 is 552006561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 165600255 - 2⁶ = 165600191 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5519994 + ... + 5520023.

It is an arithmetic number, because the mean of its divisors is an integer number (33120054).

Almost surely, 2^165600255 is an apocalyptic number.

165600255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165600255 is a deficient number, since it is larger than the sum of its proper divisors (99360177).

165600255 is a wasteful number, since it uses less digits than its factorization.

165600255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11040025.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 165600255 is about 12868.5762615761. The cubic root of 165600255 is about 549.1449579230.

The spelling of 165600255 in words is "one hundred sixty-five million, six hundred thousand, two hundred fifty-five".