265765422720 has 256 divisors, whose sum is σ = 1025096083200. Its totient is φ = 57173016576.

The previous prime is 265765422707. The next prime is 265765422773. The reversal of 265765422720 is 27224567562.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 265765422720.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 353115 + ... + 810074.

It is an arithmetic number, because the mean of its divisors is an integer number (4004281575).

Almost surely, 2^265765422720 is an apocalyptic number.

265765422720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265765422720 is an abundant number, since it is smaller than the sum of its proper divisors (759330660480).

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

265765422720 is a wasteful number, since it uses less digits than its factorization.

265765422720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163235 (or 1163223 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 48.

The spelling of 265765422720 in words is "two hundred sixty-five billion, seven hundred sixty-five million, four hundred twenty-two thousand, seven hundred twenty".