165252605960 has 64 divisors (see below), whose sum is σ = 400872326400. Its totient is φ = 60947387136.

The previous prime is 165252605951. The next prime is 165252605983. The reversal of 165252605960 is 69506252561.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282101 + ... + 640379.

It is an arithmetic number, because the mean of its divisors is an integer number (6263630100).

Almost surely, 2^165252605960 is an apocalyptic number.

165252605960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165252605960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200436163200).

165252605960 is an abundant number, since it is smaller than the sum of its proper divisors (235619720440).

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

165252605960 is a wasteful number, since it uses less digits than its factorization.

165252605960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359190 (or 359186 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 165252605960 in words is "one hundred sixty-five billion, two hundred fifty-two million, six hundred five thousand, nine hundred sixty".