265190852680 has 32 divisors (see below), whose sum is σ = 642577836600. Its totient is φ = 97916622336.

The previous prime is 265190852659. The next prime is 265190852683. The reversal of 265190852680 is 86258091562.

It can be written as a sum of positive squares in 4 ways, for example, as 164477291364 + 100713561316 = 405558^2 + 317354^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (265190852683) 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, 254990685 + ... + 254991724.

Almost surely, 2^265190852680 is an apocalyptic number.

265190852680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265190852680 is an abundant number, since it is smaller than the sum of its proper divisors (377386983920).

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

265190852680 is a wasteful number, since it uses less digits than its factorization.

265190852680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509982433 (or 509982429 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 52.

The spelling of 265190852680 in words is "two hundred sixty-five billion, one hundred ninety million, eight hundred fifty-two thousand, six hundred eighty".