336666696991 has 2 divisors, whose sum is σ = 336666696992. Its totient is φ = 336666696990.

The previous prime is 336666696931. The next prime is 336666696997. The reversal of 336666696991 is 199696666633.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (199696666633) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 336666696991 - 2²³ = 336658308383 is a prime.

It is a super-2 number, since 2×336666696991² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 336666696991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (336666696997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168333348495 + 168333348496.

It is an arithmetic number, because the mean of its divisors is an integer number (168333348496).

Almost surely, 2^336666696991 is an apocalyptic number.

336666696991 is a deficient number, since it is larger than the sum of its proper divisors (1).

336666696991 is an equidigital number, since it uses as much as digits as its factorization.

336666696991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 306110016, while the sum is 70.

The spelling of 336666696991 in words is "three hundred thirty-six billion, six hundred sixty-six million, six hundred ninety-six thousand, nine hundred ninety-one".