36644430601 has 2 divisors, whose sum is σ = 36644430602. Its totient is φ = 36644430600.

The previous prime is 36644430587. The next prime is 36644430673. The reversal of 36644430601 is 10603444663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30387462400 + 6256968201 = 174320^2 + 79101^2 .

It is a cyclic number.

It is not a de Polignac number, because 36644430601 - 2⁹ = 36644430089 is a prime.

It is not a weakly prime, because it can be changed into another prime (36644430701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18322215300 + 18322215301.

It is an arithmetic number, because the mean of its divisors is an integer number (18322215301).

Almost surely, 2^36644430601 is an apocalyptic number.

It is an amenable number.

36644430601 is a deficient number, since it is larger than the sum of its proper divisors (1).

36644430601 is an equidigital number, since it uses as much as digits as its factorization.

36644430601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 37.

The spelling of 36644430601 in words is "thirty-six billion, six hundred forty-four million, four hundred thirty thousand, six hundred one".