265257665010 has 48 divisors (see below), whose sum is σ = 742721465304. Its totient is φ = 65294194176.

The previous prime is 265257664961. The next prime is 265257665017. The reversal of 265257665010 is 10566752562.

265257665010 is a `hidden beast` number, since 2 + 6 + 5 + 2 + 576 + 65 + 0 + 10 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 246425866569 + 18831798441 = 496413^2 + 137229^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (265257665017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113356807 + ... + 113359146.

Almost surely, 2^265257665010 is an apocalyptic number.

265257665010 is an abundant number, since it is smaller than the sum of its proper divisors (477463800294).

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

265257665010 is a wasteful number, since it uses less digits than its factorization.

265257665010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226715979 (or 226715976 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The spelling of 265257665010 in words is "two hundred sixty-five billion, two hundred fifty-seven million, six hundred sixty-five thousand, ten".