3666959493091 has 2 divisors, whose sum is σ = 3666959493092. Its totient is φ = 3666959493090.

The previous prime is 3666959492941. The next prime is 3666959493133. The reversal of 3666959493091 is 1903949596663.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3666959493091 - 2¹⁵ = 3666959460323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3666959493091.

It is not a weakly prime, because it can be changed into another prime (3666959493191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1833479746545 + 1833479746546.

It is an arithmetic number, because the mean of its divisors is an integer number (1833479746546).

Almost surely, 2^{3666959493091} is an apocalyptic number.

3666959493091 is a deficient number, since it is larger than the sum of its proper divisors (1).

3666959493091 is an equidigital number, since it uses as much as digits as its factorization.

3666959493091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 255091680, while the sum is 70.

The spelling of 3666959493091 in words is "three trillion, six hundred sixty-six billion, nine hundred fifty-nine million, four hundred ninety-three thousand, ninety-one".