2265143304656 has 20 divisors (see below), whose sum is σ = 4394702508612. Its totient is φ = 1131026528256.

The previous prime is 2265143304649. The next prime is 2265143304667. The reversal of 2265143304656 is 6564033415622.

It can be written as a sum of positive squares in 2 ways, for example, as 1997937018256 + 267206286400 = 1413484^2 + 516920^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2265143304656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96558161 + ... + 96581616.

Almost surely, 2^{2265143304656} is an apocalyptic number.

It is an amenable number.

2265143304656 is a deficient number, since it is larger than the sum of its proper divisors (2129559203956).

2265143304656 is a wasteful number, since it uses less digits than its factorization.

2265143304656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193140518 (or 193140512 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 2265143304656 in words is "two trillion, two hundred sixty-five billion, one hundred forty-three million, three hundred four thousand, six hundred fifty-six".