165742628 has 12 divisors (see below), whose sum is σ = 290140032. Its totient is φ = 82845480.

The previous prime is 165742559. The next prime is 165742649. The reversal of 165742628 is 826247561.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20213 + ... + 27203.

It is an arithmetic number, because the mean of its divisors is an integer number (24178336).

Almost surely, 2^165742628 is an apocalyptic number.

It is an amenable number.

165742628 is a deficient number, since it is larger than the sum of its proper divisors (124397404).

165742628 is a wasteful number, since it uses less digits than its factorization.

165742628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12922 (or 12920 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 165742628 is about 12874.1068816443. The cubic root of 165742628 is about 549.3022866260.

The spelling of 165742628 in words is "one hundred sixty-five million, seven hundred forty-two thousand, six hundred twenty-eight".