165260344504530 has 128 divisors (see below), whose sum is σ = 436832345779200. Its totient is φ = 39680571680000.

The previous prime is 165260344504523. The next prime is 165260344504531. The reversal of 165260344504530 is 35405443062561.

It is a self number, because there is not a number n which added to its sum of digits gives 165260344504530.

It is not an unprimeable number, because it can be changed into a prime (165260344504531) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9253456 + ... + 20399684.

It is an arithmetic number, because the mean of its divisors is an integer number (3412752701400).

Almost surely, 2^{165260344504530} is an apocalyptic number.

165260344504530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 165260344504530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218416172889600).

165260344504530 is an abundant number, since it is smaller than the sum of its proper divisors (271572001274670).

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

165260344504530 is a wasteful number, since it uses less digits than its factorization.

165260344504530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11146680.

The product of its (nonzero) digits is 5184000, while the sum is 48.

The spelling of 165260344504530 in words is "one hundred sixty-five trillion, two hundred sixty billion, three hundred forty-four million, five hundred four thousand, five hundred thirty".