265856500672 has 28 divisors (see below), whose sum is σ = 602924565040. Its totient is φ = 113938500096.

The previous prime is 265856500667. The next prime is 265856500703. The reversal of 265856500672 is 276005658562.

It is a tau number, because it is divible by the number of its divisors (28).

It is a super-2 number, since 2×265856500672² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 296714397 + ... + 296715292.

It is an arithmetic number, because the mean of its divisors is an integer number (21533020180).

Almost surely, 2^265856500672 is an apocalyptic number.

It is an amenable number.

265856500672 is an abundant number, since it is smaller than the sum of its proper divisors (337068064368).

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

265856500672 is an equidigital number, since it uses as much as digits as its factorization.

265856500672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593429708 (or 593429698 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 52.

The spelling of 265856500672 in words is "two hundred sixty-five billion, eight hundred fifty-six million, five hundred thousand, six hundred seventy-two".