165312822 has 32 divisors (see below), whose sum is σ = 345680640. Its totient is φ = 52604640.

The previous prime is 165312821. The next prime is 165312859. The reversal of 165312822 is 228213561.

It is a self number, because there is not a number n which added to its sum of digits gives 165312822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165312821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101172 + ... + 102792.

It is an arithmetic number, because the mean of its divisors is an integer number (10802520).

Almost surely, 2^165312822 is an apocalyptic number.

165312822 is an abundant number, since it is smaller than the sum of its proper divisors (180367818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165312822 is a wasteful number, since it uses less digits than its factorization.

165312822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388.

The product of its digits is 5760, while the sum is 30.

The square root of 165312822 is about 12857.4033925984. The cubic root of 165312822 is about 548.8270562519.

The spelling of 165312822 in words is "one hundred sixty-five million, three hundred twelve thousand, eight hundred twenty-two".