36666703336691 has 2 divisors, whose sum is σ = 36666703336692. Its totient is φ = 36666703336690.

The previous prime is 36666703336609. The next prime is 36666703336709. The reversal of 36666703336691 is 19663330766663.

It is a happy number.

36666703336691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36666703336691 - 2²² = 36666699142387 is a prime.

It is not a weakly prime, because it can be changed into another prime (36666703338691) 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, 18333351668345 + 18333351668346.

It is an arithmetic number, because the mean of its divisors is an integer number (18333351668346).

Almost surely, 2^{36666703336691} is an apocalyptic number.

36666703336691 is a deficient number, since it is larger than the sum of its proper divisors (1).

36666703336691 is an equidigital number, since it uses as much as digits as its factorization.

36666703336691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 238085568, while the sum is 65.

The spelling of 36666703336691 in words is "thirty-six trillion, six hundred sixty-six billion, seven hundred three million, three hundred thirty-six thousand, six hundred ninety-one".