264440633200625 has 40 divisors (see below), whose sum is σ = 378593222688384. Its totient is φ = 180878522400000.

The previous prime is 264440633200603. The next prime is 264440633200633. The reversal of 264440633200625 is 526002336044462.

It is not a de Polignac number, because 264440633200625 - 2¹⁰ = 264440633199601 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 264440633200625.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 73611677 + ... + 77120426.

Almost surely, 2^{264440633200625} is an apocalyptic number.

264440633200625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

264440633200625 is a deficient number, since it is larger than the sum of its proper divisors (114152589487759).

264440633200625 is an equidigital number, since it uses as much as digits as its factorization.

264440633200625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150732531 (or 150732516 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 47.

The spelling of 264440633200625 in words is "two hundred sixty-four trillion, four hundred forty billion, six hundred thirty-three million, two hundred thousand, six hundred twenty-five".