6620631016 has 64 divisors (see below), whose sum is σ = 13261752000. Its totient is φ = 3089664000.

The previous prime is 6620631007. The next prime is 6620631023. The reversal of 6620631016 is 6101360266.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3699850 + ... + 3701638.

It is an arithmetic number, because the mean of its divisors is an integer number (207214875).

Almost surely, 2^6620631016 is an apocalyptic number.

It is an amenable number.

6620631016 is an abundant number, since it is smaller than the sum of its proper divisors (6641120984).

6620631016 is a wasteful number, since it uses less digits than its factorization.

6620631016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162 (or 2158 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 6620631016 is about 81367.2600988874. The cubic root of 6620631016 is about 1877.7299271424.

The spelling of 6620631016 in words is "six billion, six hundred twenty million, six hundred thirty-one thousand, sixteen".