165501060156 has 36 divisors (see below), whose sum is σ = 431845063104. Its totient is φ = 53387438400.

The previous prime is 165501060139. The next prime is 165501060157. The reversal of 165501060156 is 651060105561.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 165501060156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165501060157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74148105 + ... + 74150336.

Almost surely, 2^165501060156 is an apocalyptic number.

It is an amenable number.

165501060156 is an abundant number, since it is smaller than the sum of its proper divisors (266344002948).

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

165501060156 is a wasteful number, since it uses less digits than its factorization.

165501060156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148298482 (or 148298477 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 165501060156 in words is "one hundred sixty-five billion, five hundred one million, sixty thousand, one hundred fifty-six".