165485761608 has 64 divisors (see below), whose sum is σ = 426255177600. Its totient is φ = 53505374720.

The previous prime is 165485761607. The next prime is 165485761663. The reversal of 165485761608 is 806167584561.

It is not an unprimeable number, because it can be changed into a prime (165485761607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315828 + ... + 656291.

It is an arithmetic number, because the mean of its divisors is an integer number (6660237150).

Almost surely, 2^165485761608 is an apocalyptic number.

It is an amenable number.

165485761608 is an abundant number, since it is smaller than the sum of its proper divisors (260769415992).

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

165485761608 is a wasteful number, since it uses less digits than its factorization.

165485761608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972342 (or 972338 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 57.

The spelling of 165485761608 in words is "one hundred sixty-five billion, four hundred eighty-five million, seven hundred sixty-one thousand, six hundred eight".