165922988 has 24 divisors (see below), whose sum is σ = 362014464. Its totient is φ = 64645200.

The previous prime is 165922963. The next prime is 165923027. The reversal of 165922988 is 889229561.

165922988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 269048 + ... + 269663.

It is an arithmetic number, because the mean of its divisors is an integer number (15083936).

Almost surely, 2^165922988 is an apocalyptic number.

It is an amenable number.

165922988 is an abundant number, since it is smaller than the sum of its proper divisors (196091476).

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

165922988 is a wasteful number, since it uses less digits than its factorization.

165922988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538733 (or 538731 counting only the distinct ones).

The product of its digits is 622080, while the sum is 50.

The square root of 165922988 is about 12881.1097348016. The cubic root of 165922988 is about 549.5014633994.

The spelling of 165922988 in words is "one hundred sixty-five million, nine hundred twenty-two thousand, nine hundred eighty-eight".