6700645464 has 16 divisors (see below), whose sum is σ = 16751613720. Its totient is φ = 2233548480.

The previous prime is 6700645451. The next prime is 6700645493. The reversal of 6700645464 is 4645460076.

It is a happy number.

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, 139596757 + ... + 139596804.

Almost surely, 2^6700645464 is an apocalyptic number.

It is an amenable number.

6700645464 is an abundant number, since it is smaller than the sum of its proper divisors (10050968256).

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

6700645464 is a wasteful number, since it uses less digits than its factorization.

6700645464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279193570 (or 279193566 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 42.

The square root of 6700645464 is about 81857.4704226804. The cubic root of 6700645464 is about 1885.2641679366.

The spelling of 6700645464 in words is "six billion, seven hundred million, six hundred forty-five thousand, four hundred sixty-four".