165860368 has 20 divisors (see below), whose sum is σ = 328193280. Its totient is φ = 81165344.

The previous prime is 165860353. The next prime is 165860399. The reversal of 165860368 is 863068561.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109528 + ... + 111031.

It is an arithmetic number, because the mean of its divisors is an integer number (16409664).

Almost surely, 2^165860368 is an apocalyptic number.

It is an amenable number.

165860368 is a deficient number, since it is larger than the sum of its proper divisors (162332912).

165860368 is a wasteful number, since it uses less digits than its factorization.

165860368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220614 (or 220608 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 165860368 is about 12878.6788142262. The cubic root of 165860368 is about 549.4323266837.

It can be divided in two parts, 1658 and 60368, that added together give a palindrome (62026).

The spelling of 165860368 in words is "one hundred sixty-five million, eight hundred sixty thousand, three hundred sixty-eight".