265000164 has 144 divisors (see below), whose sum is σ = 744502080. Its totient is φ = 72864000.

The previous prime is 265000157. The next prime is 265000171. The reversal of 265000164 is 461000562.

It is an interprime number because it is at equal distance from previous prime (265000157) and next prime (265000171).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1906407 + ... + 1906545.

Almost surely, 2^265000164 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 265000164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372251040).

265000164 is an abundant number, since it is smaller than the sum of its proper divisors (479501916).

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

265000164 is a wasteful number, since it uses less digits than its factorization.

265000164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 265000164 is about 16278.8256333189. The cubic root of 265000164 is about 642.3159613591.

The spelling of 265000164 in words is "two hundred sixty-five million, one hundred sixty-four", and thus it is an aban number.