265403200465 has 32 divisors (see below), whose sum is σ = 345918859776. Its totient is φ = 194317643520.

The previous prime is 265403200421. The next prime is 265403200553. The reversal of 265403200465 is 564002304562.

It is not a de Polignac number, because 265403200465 - 2²¹ = 265401103313 is a prime.

It is a Duffinian 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, 4696830 + ... + 4753000.

It is an arithmetic number, because the mean of its divisors is an integer number (10809964368).

Almost surely, 2^265403200465 is an apocalyptic number.

It is an amenable number.

265403200465 is a deficient number, since it is larger than the sum of its proper divisors (80515659311).

265403200465 is a wasteful number, since it uses less digits than its factorization.

265403200465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56809.

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 265403200465 in words is "two hundred sixty-five billion, four hundred three million, two hundred thousand, four hundred sixty-five".