165426520 has 32 divisors (see below), whose sum is σ = 425383200. Its totient is φ = 56717568.

The previous prime is 165426491. The next prime is 165426523. The reversal of 165426520 is 25624561.

165426520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165426523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295125 + ... + 295684.

It is an arithmetic number, because the mean of its divisors is an integer number (13293225).

Almost surely, 2^165426520 is an apocalyptic number.

165426520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165426520 is an abundant number, since it is smaller than the sum of its proper divisors (259956680).

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

165426520 is a wasteful number, since it uses less digits than its factorization.

165426520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590827 (or 590823 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 165426520 is about 12861.8241319029. The cubic root of 165426520 is about 548.9528505642.

The spelling of 165426520 in words is "one hundred sixty-five million, four hundred twenty-six thousand, five hundred twenty".