6628170761 has 2 divisors, whose sum is σ = 6628170762. Its totient is φ = 6628170760.

The previous prime is 6628170739. The next prime is 6628170793. The reversal of 6628170761 is 1670718266.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6522985225 + 105185536 = 80765^2 + 10256^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6628170761 is a prime.

It is not a weakly prime, because it can be changed into another prime (6628170161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3314085380 + 3314085381.

It is an arithmetic number, because the mean of its divisors is an integer number (3314085381).

Almost surely, 2^6628170761 is an apocalyptic number.

It is an amenable number.

6628170761 is a deficient number, since it is larger than the sum of its proper divisors (1).

6628170761 is an equidigital number, since it uses as much as digits as its factorization.

6628170761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 6628170761 is about 81413.5784804967. The cubic root of 6628170761 is about 1878.4424591173.

The spelling of 6628170761 in words is "six billion, six hundred twenty-eight million, one hundred seventy thousand, seven hundred sixty-one".