6621707222631 has 16 divisors (see below), whose sum is σ = 9822895621600. Its totient is φ = 4408639933824.

The previous prime is 6621707222609. The next prime is 6621707222653. The reversal of 6621707222631 is 1362227071266.

6621707222631 is a `hidden beast` number, since 6 + 6 + 2 + 1 + 7 + 0 + 7 + 2 + 2 + 2 + 631 = 666.

It is an interprime number because it is at equal distance from previous prime (6621707222609) and next prime (6621707222653).

It is not a de Polignac number, because 6621707222631 - 2¹⁰ = 6621707221607 is a prime.

It is a super-2 number, since 2×6621707222631² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6621707222671) 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, 161966626 + ... + 162007503.

It is an arithmetic number, because the mean of its divisors is an integer number (613930976350).

Almost surely, 2^{6621707222631} is an apocalyptic number.

6621707222631 is a deficient number, since it is larger than the sum of its proper divisors (3201188398969).

6621707222631 is a wasteful number, since it uses less digits than its factorization.

6621707222631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323974895 (or 323974889 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 6621707222631 in words is "six trillion, six hundred twenty-one billion, seven hundred seven million, two hundred twenty-two thousand, six hundred thirty-one".