666658352159 has 2 divisors, whose sum is σ = 666658352160. Its totient is φ = 666658352158.

The previous prime is 666658352099. The next prime is 666658352177. The reversal of 666658352159 is 951253856666.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 666658352159 - 2⁸ = 666658351903 is a prime.

It is a super-2 number, since 2×666658352159² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (666658355159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333329176079 + 333329176080.

It is an arithmetic number, because the mean of its divisors is an integer number (333329176080).

Almost surely, 2^666658352159 is an apocalyptic number.

666658352159 is a deficient number, since it is larger than the sum of its proper divisors (1).

666658352159 is an equidigital number, since it uses as much as digits as its factorization.

666658352159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984000, while the sum is 62.

The spelling of 666658352159 in words is "six hundred sixty-six billion, six hundred fifty-eight million, three hundred fifty-two thousand, one hundred fifty-nine".