36664676171549 has 2 divisors, whose sum is σ = 36664676171550. Its totient is φ = 36664676171548.

The previous prime is 36664676171531. The next prime is 36664676171551. The reversal of 36664676171549 is 94517167646663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36620531220100 + 44144951449 = 6051490^2 + 210107^2 .

It is a cyclic number.

It is not a de Polignac number, because 36664676171549 - 2²⁴ = 36664659394333 is a prime.

Together with 36664676171551, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36664676101549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18332338085774 + 18332338085775.

It is an arithmetic number, because the mean of its divisors is an integer number (18332338085775).

Almost surely, 2^{36664676171549} is an apocalyptic number.

It is an amenable number.

36664676171549 is a deficient number, since it is larger than the sum of its proper divisors (1).

36664676171549 is an equidigital number, since it uses as much as digits as its factorization.

36664676171549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 823011840, while the sum is 71.

The spelling of 36664676171549 in words is "thirty-six trillion, six hundred sixty-four billion, six hundred seventy-six million, one hundred seventy-one thousand, five hundred forty-nine".