265382247665280 has 64 divisors (see below), whose sum is σ = 845905914439200. Its totient is φ = 70768599376896.

The previous prime is 265382247665263. The next prime is 265382247665323. The reversal of 265382247665280 is 82566742283562.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69109958410 + ... + 69109962249.

Almost surely, 2^{265382247665280} is an apocalyptic number.

265382247665280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265382247665280 is an abundant number, since it is smaller than the sum of its proper divisors (580523666773920).

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

265382247665280 is a wasteful number, since it uses less digits than its factorization.

265382247665280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138219920681 (or 138219920669 counting only the distinct ones).

The product of its (nonzero) digits is 464486400, while the sum is 66.

The spelling of 265382247665280 in words is "two hundred sixty-five trillion, three hundred eighty-two billion, two hundred forty-seven million, six hundred sixty-five thousand, two hundred eighty".