6364667656 has 16 divisors (see below), whose sum is σ = 11960942400. Its totient is φ = 3175083024.

The previous prime is 6364667641. The next prime is 6364667711. The reversal of 6364667656 is 6567664636.

It is a junction number, because it is equal to n+sod(n) for n = 6364667597 and 6364667606.

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, 902620 + ... + 909643.

It is an arithmetic number, because the mean of its divisors is an integer number (747558900).

Almost surely, 2^6364667656 is an apocalyptic number.

It is an amenable number.

6364667656 is a deficient number, since it is larger than the sum of its proper divisors (5596274744).

6364667656 is a wasteful number, since it uses less digits than its factorization.

6364667656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812708 (or 1812704 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 55.

The square root of 6364667656 is about 79778.8672268540. The cubic root of 6364667656 is about 1853.2125972737.

The spelling of 6364667656 in words is "six billion, three hundred sixty-four million, six hundred sixty-seven thousand, six hundred fifty-six".