165260412444 has 96 divisors (see below), whose sum is σ = 411259464000. Its totient is φ = 51469996032.

The previous prime is 165260412433. The next prime is 165260412467. The reversal of 165260412444 is 444214062561.

It is a super-2 number, since 2×165260412444² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60115182 + ... + 60117930.

It is an arithmetic number, because the mean of its divisors is an integer number (4283952750).

Almost surely, 2^165260412444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165260412444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205629732000).

165260412444 is an abundant number, since it is smaller than the sum of its proper divisors (245999051556).

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

165260412444 is a wasteful number, since it uses less digits than its factorization.

165260412444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4807 (or 4805 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 39.

The spelling of 165260412444 in words is "one hundred sixty-five billion, two hundred sixty million, four hundred twelve thousand, four hundred forty-four".