6623711161 has 2 divisors, whose sum is σ = 6623711162. Its totient is φ = 6623711160.

The previous prime is 6623711117. The next prime is 6623711179. The reversal of 6623711161 is 1611173266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3752787600 + 2870923561 = 61260^2 + 53581^2 .

It is a cyclic number.

It is not a de Polignac number, because 6623711161 - 2⁹ = 6623710649 is a prime.

It is not a weakly prime, because it can be changed into another prime (6623711111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3311855580 + 3311855581.

It is an arithmetic number, because the mean of its divisors is an integer number (3311855581).

Almost surely, 2^6623711161 is an apocalyptic number.

It is an amenable number.

6623711161 is a deficient number, since it is larger than the sum of its proper divisors (1).

6623711161 is an equidigital number, since it uses as much as digits as its factorization.

6623711161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 34.

The square root of 6623711161 is about 81386.1853203601. The cubic root of 6623711161 is about 1878.0210768200.

The spelling of 6623711161 in words is "six billion, six hundred twenty-three million, seven hundred eleven thousand, one hundred sixty-one".