6251261656 has 16 divisors (see below), whose sum is σ = 11751724800. Its totient is φ = 3117468384.

The previous prime is 6251261651. The next prime is 6251261657. The reversal of 6251261656 is 6561621526.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6251261651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1017051 + ... + 1023178.

It is an arithmetic number, because the mean of its divisors is an integer number (734482800).

Almost surely, 2^6251261656 is an apocalyptic number.

It is an amenable number.

6251261656 is a deficient number, since it is larger than the sum of its proper divisors (5500463144).

6251261656 is a wasteful number, since it uses less digits than its factorization.

6251261656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040618 (or 2040614 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The square root of 6251261656 is about 79064.9205147264. The cubic root of 6251261656 is about 1842.1396871262.

The spelling of 6251261656 in words is "six billion, two hundred fifty-one million, two hundred sixty-one thousand, six hundred fifty-six".