265113666 has 12 divisors (see below), whose sum is σ = 574412982. Its totient is φ = 88371216.

The previous prime is 265113649. The next prime is 265113671. The reversal of 265113666 is 666311562.

It can be written as a sum of positive squares in only one way, i.e., 262926225 + 2187441 = 16215^2 + 1479^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 265113666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7364251 + ... + 7364286.

Almost surely, 2^265113666 is an apocalyptic number.

265113666 is an abundant number, since it is smaller than the sum of its proper divisors (309299316).

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

265113666 is a wasteful number, since it uses less digits than its factorization.

265113666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14728545 (or 14728542 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 265113666 is about 16282.3114452463. The cubic root of 265113666 is about 642.4076515416.

The spelling of 265113666 in words is "two hundred sixty-five million, one hundred thirteen thousand, six hundred sixty-six".