165206256 has 20 divisors (see below), whose sum is σ = 426782952. Its totient is φ = 55068736.

The previous prime is 165206219. The next prime is 165206257. The reversal of 165206256 is 652602561.

It is a happy number.

165206256 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 (165206257) 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, 1720851 + ... + 1720946.

Almost surely, 2^165206256 is an apocalyptic number.

165206256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165206256 is an abundant number, since it is smaller than the sum of its proper divisors (261576696).

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

165206256 is a wasteful number, since it uses less digits than its factorization.

165206256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3441808 (or 3441802 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 165206256 is about 12853.2585751630. The cubic root of 165206256 is about 548.7091003361.

The spelling of 165206256 in words is "one hundred sixty-five million, two hundred six thousand, two hundred fifty-six".