2149666559 has 2 divisors, whose sum is σ = 2149666560. Its totient is φ = 2149666558.

The previous prime is 2149666537. The next prime is 2149666577. The reversal of 2149666559 is 9556669412.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2149666559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2149666559.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2149666529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074833279 + 1074833280.

It is an arithmetic number, because the mean of its divisors is an integer number (1074833280).

Almost surely, 2^2149666559 is an apocalyptic number.

2149666559 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149666559 is an equidigital number, since it uses as much as digits as its factorization.

2149666559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3499200, while the sum is 53.

The square root of 2149666559 is about 46364.4967512859. The cubic root of 2149666559 is about 1290.5961547560.

The spelling of 2149666559 in words is "two billion, one hundred forty-nine million, six hundred sixty-six thousand, five hundred fifty-nine".