165239552 has 18 divisors (see below), whose sum is σ = 329834148. Its totient is φ = 82619648.

The previous prime is 165239549. The next prime is 165239563. The reversal of 165239552 is 255932561.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 322478 + ... + 322989.

Almost surely, 2^165239552 is an apocalyptic number.

It is an amenable number.

165239552 is a deficient number, since it is larger than the sum of its proper divisors (164594596).

165239552 is an frugal number, since it uses more digits than its factorization.

165239552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645483 (or 645469 counting only the distinct ones).

The product of its digits is 81000, while the sum is 38.

The square root of 165239552 is about 12854.5537456576. The cubic root of 165239552 is about 548.7459605039.

The spelling of 165239552 in words is "one hundred sixty-five million, two hundred thirty-nine thousand, five hundred fifty-two".