165426256 has 20 divisors (see below), whose sum is σ = 321850804. Its totient is φ = 82368000.

The previous prime is 165426253. The next prime is 165426271. The reversal of 165426256 is 652624561.

It can be written as a sum of positive squares in 2 ways, for example, as 126787600 + 38638656 = 11260^2 + 6216^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165426253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17595 + ... + 25306.

Almost surely, 2^165426256 is an apocalyptic number.

165426256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165426256 is a deficient number, since it is larger than the sum of its proper divisors (156424548).

165426256 is a wasteful number, since it uses less digits than its factorization.

165426256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43150 (or 43144 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The square root of 165426256 is about 12861.8138689689. The cubic root of 165426256 is about 548.9525585441.

The spelling of 165426256 in words is "one hundred sixty-five million, four hundred twenty-six thousand, two hundred fifty-six".