6628351632 has 40 divisors (see below), whose sum is σ = 19569420096. Its totient is φ = 1893814656.

The previous prime is 6628351619. The next prime is 6628351657. The reversal of 6628351632 is 2361538266.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 9863283 + ... + 9863954.

Almost surely, 2^6628351632 is an apocalyptic number.

It is an amenable number.

6628351632 is an abundant number, since it is smaller than the sum of its proper divisors (12941068464).

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

6628351632 is a wasteful number, since it uses less digits than its factorization.

6628351632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19727255 (or 19727249 counting only the distinct ones).

The product of its digits is 311040, while the sum is 42.

The square root of 6628351632 is about 81414.6892888501. The cubic root of 6628351632 is about 1878.4595454140.

Adding to 6628351632 its reverse (2361538266), we get a palindrome (8989889898).

The spelling of 6628351632 in words is "six billion, six hundred twenty-eight million, three hundred fifty-one thousand, six hundred thirty-two".