165422895 has 32 divisors (see below), whose sum is σ = 289889280. Its totient is φ = 79885440.

The previous prime is 165422867. The next prime is 165422941. The reversal of 165422895 is 598224561.

It is not a de Polignac number, because 165422895 - 2⁵ = 165422863 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42522 + ... + 46248.

It is an arithmetic number, because the mean of its divisors is an integer number (9059040).

Almost surely, 2^165422895 is an apocalyptic number.

165422895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165422895 is a deficient number, since it is larger than the sum of its proper divisors (124466385).

165422895 is a wasteful number, since it uses less digits than its factorization.

165422895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015.

The product of its digits is 172800, while the sum is 42.

The square root of 165422895 is about 12861.6832102179. The cubic root of 165422895 is about 548.9488407907.

The spelling of 165422895 in words is "one hundred sixty-five million, four hundred twenty-two thousand, eight hundred ninety-five".