165355756 has 12 divisors (see below), whose sum is σ = 289717792. Its totient is φ = 82579248.

The previous prime is 165355741. The next prime is 165355793. The reversal of 165355756 is 657553561.

165355756 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

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, 20820 + ... + 27643.

Almost surely, 2^165355756 is an apocalyptic number.

It is an amenable number.

165355756 is a deficient number, since it is larger than the sum of its proper divisors (124362036).

165355756 is a wasteful number, since it uses less digits than its factorization.

165355756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49320 (or 49318 counting only the distinct ones).

The product of its digits is 472500, while the sum is 43.

The square root of 165355756 is about 12859.0729059291. The cubic root of 165355756 is about 548.8745647693.

The spelling of 165355756 in words is "one hundred sixty-five million, three hundred fifty-five thousand, seven hundred fifty-six".