265050666 has 24 divisors (see below), whose sum is σ = 599245920. Its totient is φ = 84508776.

The previous prime is 265050661. The next prime is 265050677. The reversal of 265050666 is 666050562.

It is a self number, because there is not a number n which added to its sum of digits gives 265050666.

It is not an unprimeable number, because it can be changed into a prime (265050661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 319696 + ... + 320523.

It is an arithmetic number, because the mean of its divisors is an integer number (24968580).

Almost surely, 2^265050666 is an apocalyptic number.

265050666 is an abundant number, since it is smaller than the sum of its proper divisors (334195254).

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

265050666 is a wasteful number, since it uses less digits than its factorization.

265050666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640250 (or 640247 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 265050666 is about 16280.3767155432. The cubic root of 265050666 is about 642.3567615606.

The spelling of 265050666 in words is "two hundred sixty-five million, fifty thousand, six hundred sixty-six".