36644444663 has 8 divisors (see below), whose sum is σ = 37676740416. Its totient is φ = 35618745600.

The previous prime is 36644444659. The next prime is 36644444687.

36644444663 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 36644444663 - 2² = 36644444659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36644444623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1637906 + ... + 1660127.

It is an arithmetic number, because the mean of its divisors is an integer number (4709592552).

Almost surely, 2^36644444663 is an apocalyptic number.

36644444663 is a deficient number, since it is larger than the sum of its proper divisors (1032295753).

36644444663 is a wasteful number, since it uses less digits than its factorization.

36644444663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3298345.

The product of its digits is 11943936, while the sum is 50.

The spelling of 36644444663 in words is "thirty-six billion, six hundred forty-four million, four hundred forty-four thousand, six hundred sixty-three".