6650111617 has 2 divisors, whose sum is σ = 6650111618. Its totient is φ = 6650111616.

The previous prime is 6650111593. The next prime is 6650111621. The reversal of 6650111617 is 7161110566.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5521084416 + 1129027201 = 74304^2 + 33601^2 .

It is a cyclic number.

It is not a de Polignac number, because 6650111617 - 2²³ = 6641723009 is a prime.

It is not a weakly prime, because it can be changed into another prime (6650111627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3325055808 + 3325055809.

It is an arithmetic number, because the mean of its divisors is an integer number (3325055809).

Almost surely, 2^6650111617 is an apocalyptic number.

It is an amenable number.

6650111617 is a deficient number, since it is larger than the sum of its proper divisors (1).

6650111617 is an equidigital number, since it uses as much as digits as its factorization.

6650111617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 6650111617 is about 81548.2165163653. The cubic root of 6650111617 is about 1880.5128766133.

The spelling of 6650111617 in words is "six billion, six hundred fifty million, one hundred eleven thousand, six hundred seventeen".