165426560 has 128 divisors (see below), whose sum is σ = 434397600. Its totient is φ = 59867136.

The previous prime is 165426523. The next prime is 165426563. The reversal of 165426560 is 65624561.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 165426560.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165426563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490712 + ... + 491048.

Almost surely, 2^165426560 is an apocalyptic number.

165426560 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 165426560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217198800).

165426560 is an abundant number, since it is smaller than the sum of its proper divisors (268971040).

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

165426560 is a wasteful number, since it uses less digits than its factorization.

165426560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 165426560 is about 12861.8256868922. The cubic root of 165426560 is about 548.9528948097.

The spelling of 165426560 in words is "one hundred sixty-five million, four hundred twenty-six thousand, five hundred sixty".