336866686693 has 2 divisors, whose sum is σ = 336866686694. Its totient is φ = 336866686692.

The previous prime is 336866686661. The next prime is 336866686721. The reversal of 336866686693 is 396686668633.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 327456328644 + 9410358049 = 572238^2 + 97007^2 .

It is a cyclic number.

It is not a de Polignac number, because 336866686693 - 2⁵ = 336866686661 is a prime.

It is a super-2 number, since 2×336866686693² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (336866686193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168433343346 + 168433343347.

It is an arithmetic number, because the mean of its divisors is an integer number (168433343347).

Almost surely, 2^336866686693 is an apocalyptic number.

It is an amenable number.

336866686693 is a deficient number, since it is larger than the sum of its proper divisors (1).

336866686693 is an equidigital number, since it uses as much as digits as its factorization.

336866686693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725594112, while the sum is 70.

The spelling of 336866686693 in words is "three hundred thirty-six billion, eight hundred sixty-six million, six hundred eighty-six thousand, six hundred ninety-three".