661714502299 has 2 divisors, whose sum is σ = 661714502300. Its totient is φ = 661714502298.

The previous prime is 661714502243. The next prime is 661714502377. The reversal of 661714502299 is 992205417166.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 661714502299 - 2⁷ = 661714502171 is a prime.

It is not a weakly prime, because it can be changed into another prime (661714502219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330857251149 + 330857251150.

It is an arithmetic number, because the mean of its divisors is an integer number (330857251150).

Almost surely, 2^661714502299 is an apocalyptic number.

661714502299 is a deficient number, since it is larger than the sum of its proper divisors (1).

661714502299 is an equidigital number, since it uses as much as digits as its factorization.

661714502299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 661714502299 in words is "six hundred sixty-one billion, seven hundred fourteen million, five hundred two thousand, two hundred ninety-nine".