265145244505320 has 32 divisors (see below), whose sum is σ = 795435733516320. Its totient is φ = 70705398534720.

The previous prime is 265145244505291. The next prime is 265145244505381. The reversal of 265145244505320 is 23505442541562.

It is a self number, because there is not a number n which added to its sum of digits gives 265145244505320.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1104771851986 + ... + 1104771852225.

It is an arithmetic number, because the mean of its divisors is an integer number (24857366672385).

Almost surely, 2^{265145244505320} is an apocalyptic number.

265145244505320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265145244505320 is an abundant number, since it is smaller than the sum of its proper divisors (530290489011000).

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

265145244505320 is a wasteful number, since it uses less digits than its factorization.

265145244505320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209543704225 (or 2209543704221 counting only the distinct ones).

The product of its (nonzero) digits is 5760000, while the sum is 48.

The spelling of 265145244505320 in words is "two hundred sixty-five trillion, one hundred forty-five billion, two hundred forty-four million, five hundred five thousand, three hundred twenty".