2116660597 has 2 divisors, whose sum is σ = 2116660598. Its totient is φ = 2116660596.

The previous prime is 2116660519. The next prime is 2116660603. The reversal of 2116660597 is 7950666112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1599280081 + 517380516 = 39991^2 + 22746^2 .

It is a cyclic number.

It is not a de Polignac number, because 2116660597 - 2²³ = 2108271989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2116660297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058330298 + 1058330299.

It is an arithmetic number, because the mean of its divisors is an integer number (1058330299).

Almost surely, 2^2116660597 is an apocalyptic number.

It is an amenable number.

2116660597 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116660597 is an equidigital number, since it uses as much as digits as its factorization.

2116660597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 2116660597 is about 46007.1798418464. The cubic root of 2116660597 is about 1283.9567902194.

The spelling of 2116660597 in words is "two billion, one hundred sixteen million, six hundred sixty thousand, five hundred ninety-seven".