265053928440 has 128 divisors (see below), whose sum is σ = 956585664000. Its totient is φ = 57395132928.

The previous prime is 265053928429. The next prime is 265053928457. The reversal of 265053928440 is 44829350562.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 265053928440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8287735 + ... + 8319654.

It is an arithmetic number, because the mean of its divisors is an integer number (7473325500).

Almost surely, 2^265053928440 is an apocalyptic number.

265053928440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265053928440 is an abundant number, since it is smaller than the sum of its proper divisors (691531735560).

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

265053928440 is a wasteful number, since it uses less digits than its factorization.

265053928440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16607429 (or 16607425 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 265053928440 in words is "two hundred sixty-five billion, fifty-three million, nine hundred twenty-eight thousand, four hundred forty".