6512664 has 32 divisors (see below), whose sum is σ = 16470000. Its totient is φ = 2145792.

The previous prime is 6512663. The next prime is 6512699. The reversal of 6512664 is 4662156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6512663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612 + ... + 3660.

Almost surely, 2^6512664 is an apocalyptic number.

It is an amenable number.

6512664 is an abundant number, since it is smaller than the sum of its proper divisors (9957336).

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

6512664 is a wasteful number, since it uses less digits than its factorization.

6512664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147 (or 3143 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 6512664 is about 2551.9921629974. The cubic root of 6512664 is about 186.7466805501.

The spelling of 6512664 in words is "six million, five hundred twelve thousand, six hundred sixty-four".