165538366008 has 16 divisors (see below), whose sum is σ = 413845915080. Its totient is φ = 55179455328.

The previous prime is 165538365991. The next prime is 165538366079. The reversal of 165538366008 is 800663835561.

It is a congruent number.

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, 3448715935 + ... + 3448715982.

Almost surely, 2^165538366008 is an apocalyptic number.

It is an amenable number.

165538366008 is an abundant number, since it is smaller than the sum of its proper divisors (248307549072).

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

165538366008 is a wasteful number, since it uses less digits than its factorization.

165538366008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6897431926 (or 6897431922 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 165538366008 in words is "one hundred sixty-five billion, five hundred thirty-eight million, three hundred sixty-six thousand, eight".