66670036704599 has 2 divisors, whose sum is σ = 66670036704600. Its totient is φ = 66670036704598.

The previous prime is 66670036704563. The next prime is 66670036704653. The reversal of 66670036704599 is 99540763007666.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66670036704599 - 2²⁰ = 66670035656023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66670036704499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33335018352299 + 33335018352300.

It is an arithmetic number, because the mean of its divisors is an integer number (33335018352300).

Almost surely, 2^{66670036704599} is an apocalyptic number.

66670036704599 is a deficient number, since it is larger than the sum of its proper divisors (1).

66670036704599 is an equidigital number, since it uses as much as digits as its factorization.

66670036704599 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 308629440, while the sum is 68.

The spelling of 66670036704599 in words is "sixty-six trillion, six hundred seventy billion, thirty-six million, seven hundred four thousand, five hundred ninety-nine".