36666703649 has 2 divisors, whose sum is σ = 36666703650. Its totient is φ = 36666703648.

The previous prime is 36666703637. The next prime is 36666703673. The reversal of 36666703649 is 94630766663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28945918225 + 7720785424 = 170135^2 + 87868^2 .

It is a cyclic number.

It is not a de Polignac number, because 36666703649 - 2²⁰ = 36665655073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 36666703594 and 36666703603.

It is not a weakly prime, because it can be changed into another prime (36666703609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18333351824 + 18333351825.

It is an arithmetic number, because the mean of its divisors is an integer number (18333351825).

Almost surely, 2^36666703649 is an apocalyptic number.

It is an amenable number.

36666703649 is a deficient number, since it is larger than the sum of its proper divisors (1).

36666703649 is an equidigital number, since it uses as much as digits as its factorization.

36666703649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17635968, while the sum is 56.

The spelling of 36666703649 in words is "thirty-six billion, six hundred sixty-six million, seven hundred three thousand, six hundred forty-nine".