659579911 has 2 divisors, whose sum is σ = 659579912. Its totient is φ = 659579910.

The previous prime is 659579897. The next prime is 659579917. The reversal of 659579911 is 119975956.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 659579911 - 2¹⁵ = 659547143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (659579917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329789955 + 329789956.

It is an arithmetic number, because the mean of its divisors is an integer number (329789956).

Almost surely, 2^659579911 is an apocalyptic number.

659579911 is a deficient number, since it is larger than the sum of its proper divisors (1).

659579911 is an equidigital number, since it uses as much as digits as its factorization.

659579911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 765450, while the sum is 52.

The square root of 659579911 is about 25682.2878848439. The cubic root of 659579911 is about 870.4740055821.

The spelling of 659579911 in words is "six hundred fifty-nine million, five hundred seventy-nine thousand, nine hundred eleven".