666098564371 has 2 divisors, whose sum is σ = 666098564372. Its totient is φ = 666098564370.

The previous prime is 666098564273. The next prime is 666098564489. The reversal of 666098564371 is 173465890666.

666098564371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 666098564371 - 2⁹ = 666098563859 is a prime.

It is not a weakly prime, because it can be changed into another prime (666098568371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333049282185 + 333049282186.

It is an arithmetic number, because the mean of its divisors is an integer number (333049282186).

Almost surely, 2^666098564371 is an apocalyptic number.

666098564371 is a deficient number, since it is larger than the sum of its proper divisors (1).

666098564371 is an equidigital number, since it uses as much as digits as its factorization.

666098564371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39191040, while the sum is 61.

The spelling of 666098564371 in words is "six hundred sixty-six billion, ninety-eight million, five hundred sixty-four thousand, three hundred seventy-one".