165941394 has 16 divisors (see below), whose sum is σ = 337508640. Its totient is φ = 54376160.

The previous prime is 165941351. The next prime is 165941401. The reversal of 165941394 is 493149561.

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, 234027 + ... + 234734.

It is an arithmetic number, because the mean of its divisors is an integer number (21094290).

Almost surely, 2^165941394 is an apocalyptic number.

165941394 is an abundant number, since it is smaller than the sum of its proper divisors (171567246).

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

165941394 is a wasteful number, since it uses less digits than its factorization.

165941394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468825.

The product of its digits is 116640, while the sum is 42.

The square root of 165941394 is about 12881.8241720651. The cubic root of 165941394 is about 549.5217815605.

The spelling of 165941394 in words is "one hundred sixty-five million, nine hundred forty-one thousand, three hundred ninety-four".