265800064 has 16 divisors (see below), whose sum is σ = 529523820. Its totient is φ = 132899968.

The previous prime is 265800053. The next prime is 265800127. The reversal of 265800064 is 460008562.

It is a tau number, because it is divible by the number of its divisors (16).

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 265799999 and 265800035.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1038154 + ... + 1038409.

Almost surely, 2^265800064 is an apocalyptic number.

It is an amenable number.

265800064 is a deficient number, since it is larger than the sum of its proper divisors (263723756).

265800064 is an equidigital number, since it uses as much as digits as its factorization.

265800064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2076577 (or 2076565 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 265800064 is about 16303.3758467380. The cubic root of 265800064 is about 642.9615866799.

The spelling of 265800064 in words is "two hundred sixty-five million, eight hundred thousand, sixty-four".