6621671012 has 24 divisors (see below), whose sum is σ = 12819425472. Its totient is φ = 2967456800.

The previous prime is 6621671009. The next prime is 6621671029. The reversal of 6621671012 is 2101761266.

It is a super-2 number, since 2×6621671012² = 87693053982322208288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6621671012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1056683 + ... + 1062930.

It is an arithmetic number, because the mean of its divisors is an integer number (534142728).

Almost surely, 2^6621671012 is an apocalyptic number.

It is an amenable number.

6621671012 is a deficient number, since it is larger than the sum of its proper divisors (6197754460).

6621671012 is a wasteful number, since it uses less digits than its factorization.

6621671012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2119699 (or 2119697 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 6621671012 is about 81373.6506001789. The cubic root of 6621671012 is about 1877.8282425127.

The spelling of 6621671012 in words is "six billion, six hundred twenty-one million, six hundred seventy-one thousand, twelve".