6626643316 has 48 divisors (see below), whose sum is σ = 12627449856. Its totient is φ = 3030096384.

The previous prime is 6626643311. The next prime is 6626643343. The reversal of 6626643316 is 6133466266.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6626643311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2733681 + ... + 2736103.

It is an arithmetic number, because the mean of its divisors is an integer number (263071872).

Almost surely, 2^6626643316 is an apocalyptic number.

It is an amenable number.

6626643316 is a deficient number, since it is larger than the sum of its proper divisors (6000806540).

6626643316 is a wasteful number, since it uses less digits than its factorization.

6626643316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3568 (or 3566 counting only the distinct ones).

The product of its digits is 559872, while the sum is 43.

The square root of 6626643316 is about 81404.1971645197. The cubic root of 6626643316 is about 1878.2981539450.

The spelling of 6626643316 in words is "six billion, six hundred twenty-six million, six hundred forty-three thousand, three hundred sixteen".