6255743664 has 40 divisors (see below), whose sum is σ = 16254106992. Its totient is φ = 2073191680.

The previous prime is 6255743639. The next prime is 6255743719. The reversal of 6255743664 is 4663475526.

It is a super-2 number, since 2×6255743664² = 78268657579352289792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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 7 ways as a sum of consecutive naturals, for example, 368367 + ... + 384974.

Almost surely, 2^6255743664 is an apocalyptic number.

It is an amenable number.

6255743664 is an abundant number, since it is smaller than the sum of its proper divisors (9998363328).

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

6255743664 is a wasteful number, since it uses less digits than its factorization.

6255743664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753525 (or 753519 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 48.

The square root of 6255743664 is about 79093.2592829503. The cubic root of 6255743664 is about 1842.5798389344.

The spelling of 6255743664 in words is "six billion, two hundred fifty-five million, seven hundred forty-three thousand, six hundred sixty-four".