6626346644 has 24 divisors (see below), whose sum is σ = 12225046848. Its totient is φ = 3136446720.

The previous prime is 6626346589. The next prime is 6626346659. The reversal of 6626346644 is 4466436266.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362342 + ... + 380189.

It is an arithmetic number, because the mean of its divisors is an integer number (509376952).

Almost surely, 2^6626346644 is an apocalyptic number.

It is an amenable number.

6626346644 is a deficient number, since it is larger than the sum of its proper divisors (5598700204).

6626346644 is a wasteful number, since it uses less digits than its factorization.

6626346644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742655 (or 742653 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 47.

The square root of 6626346644 is about 81402.3749284995. The cubic root of 6626346644 is about 1878.2701233238.

The spelling of 6626346644 in words is "six billion, six hundred twenty-six million, three hundred forty-six thousand, six hundred forty-four".