165130655 has 4 divisors (see below), whose sum is σ = 198156792. Its totient is φ = 132104520.

The previous prime is 165130649. The next prime is 165130663. The reversal of 165130655 is 556031561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 556031561 = 19 ⋅29264819.

It is not a de Polignac number, because 165130655 - 2¹⁶ = 165065119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16513061 + ... + 16513070.

It is an arithmetic number, because the mean of its divisors is an integer number (49539198).

Almost surely, 2^165130655 is an apocalyptic number.

165130655 is a deficient number, since it is larger than the sum of its proper divisors (33026137).

165130655 is an equidigital number, since it uses as much as digits as its factorization.

165130655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33026136.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 165130655 is about 12850.3173112573. The cubic root of 165130655 is about 548.6253882397.

The spelling of 165130655 in words is "one hundred sixty-five million, one hundred thirty thousand, six hundred fifty-five".