196668599 has 2 divisors, whose sum is σ = 196668600. Its totient is φ = 196668598.

The previous prime is 196668587. The next prime is 196668613. The reversal of 196668599 is 995866691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 196668599 - 2²⁰ = 195620023 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196628599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98334299 + 98334300.

It is an arithmetic number, because the mean of its divisors is an integer number (98334300).

Almost surely, 2^196668599 is an apocalyptic number.

196668599 is a deficient number, since it is larger than the sum of its proper divisors (1).

196668599 is an equidigital number, since it uses as much as digits as its factorization.

196668599 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6298560, while the sum is 59.

The square root of 196668599 is about 14023.8582066420. The cubic root of 196668599 is about 581.5383251552.

The spelling of 196668599 in words is "one hundred ninety-six million, six hundred sixty-eight thousand, five hundred ninety-nine".