6622660215 has 12 divisors (see below), whose sum is σ = 11479277784. Its totient is φ = 3532085424.

The previous prime is 6622660211. The next prime is 6622660217. The reversal of 6622660215 is 5120662266.

6622660215 is a `hidden beast` number, since 6 + 622 + 6 + 6 + 0 + 21 + 5 = 666.

It is not a de Polignac number, because 6622660215 - 2² = 6622660211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6622660215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6622660211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73585069 + ... + 73585158.

It is an arithmetic number, because the mean of its divisors is an integer number (956606482).

Almost surely, 2^6622660215 is an apocalyptic number.

6622660215 is a deficient number, since it is larger than the sum of its proper divisors (4856617569).

6622660215 is a wasteful number, since it uses less digits than its factorization.

6622660215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147170238 (or 147170235 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 6622660215 is about 81379.7285262122. The cubic root of 6622660215 is about 1877.9217466466.

The spelling of 6622660215 in words is "six billion, six hundred twenty-two million, six hundred sixty thousand, two hundred fifteen".