6622240637 has 2 divisors, whose sum is σ = 6622240638. Its totient is φ = 6622240636.

The previous prime is 6622240613. The next prime is 6622240663. The reversal of 6622240637 is 7360422266.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6358308121 + 263932516 = 79739^2 + 16246^2 .

It is a cyclic number.

It is not a de Polignac number, because 6622240637 - 2⁸ = 6622240381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6622240637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6622240607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3311120318 + 3311120319.

It is an arithmetic number, because the mean of its divisors is an integer number (3311120319).

Almost surely, 2^6622240637 is an apocalyptic number.

It is an amenable number.

6622240637 is a deficient number, since it is larger than the sum of its proper divisors (1).

6622240637 is an equidigital number, since it uses as much as digits as its factorization.

6622240637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 38.

The square root of 6622240637 is about 81377.1505829493. The cubic root of 6622240637 is about 1877.8820872920.

The spelling of 6622240637 in words is "six billion, six hundred twenty-two million, two hundred forty thousand, six hundred thirty-seven".