165059916 has 48 divisors (see below), whose sum is σ = 463330560. Its totient is φ = 44677440.

The previous prime is 165059893. The next prime is 165059933. The reversal of 165059916 is 619950561.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50115 + ... + 53306.

It is an arithmetic number, because the mean of its divisors is an integer number (9652720).

Almost surely, 2^165059916 is an apocalyptic number.

It is an amenable number.

165059916 is an abundant number, since it is smaller than the sum of its proper divisors (298270644).

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

165059916 is a wasteful number, since it uses less digits than its factorization.

165059916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103454 (or 103452 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 42.

The square root of 165059916 is about 12847.5645941167. The cubic root of 165059916 is about 548.5470366371.

The spelling of 165059916 in words is "one hundred sixty-five million, fifty-nine thousand, nine hundred sixteen".