6630426464 has 24 divisors (see below), whose sum is σ = 13188232008. Its totient is φ = 3281034240.

The previous prime is 6630426457. The next prime is 6630426559. The reversal of 6630426464 is 4646240366.

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, 1064942 + ... + 1071149.

It is an arithmetic number, because the mean of its divisors is an integer number (549509667).

Almost surely, 2^6630426464 is an apocalyptic number.

It is an amenable number.

6630426464 is a deficient number, since it is larger than the sum of its proper divisors (6557805544).

6630426464 is a wasteful number, since it uses less digits than its factorization.

6630426464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136198 (or 2136190 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 41.

The square root of 6630426464 is about 81427.4306606809. The cubic root of 6630426464 is about 1878.6555258323.

The spelling of 6630426464 in words is "six billion, six hundred thirty million, four hundred twenty-six thousand, four hundred sixty-four".