636622116683 has 4 divisors (see below), whose sum is σ = 727568133360. Its totient is φ = 545676100008.

The previous prime is 636622116671. The next prime is 636622116727. The reversal of 636622116683 is 386611226636.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 636622116683 - 2³⁰ = 635548374859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (636622146683) 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 3 ways as a sum of consecutive naturals, for example, 45473008328 + ... + 45473008341.

It is an arithmetic number, because the mean of its divisors is an integer number (181892033340).

Almost surely, 2^636622116683 is an apocalyptic number.

636622116683 is a deficient number, since it is larger than the sum of its proper divisors (90946016677).

636622116683 is an equidigital number, since it uses as much as digits as its factorization.

636622116683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90946016676.

The product of its digits is 2239488, while the sum is 50.

The spelling of 636622116683 in words is "six hundred thirty-six billion, six hundred twenty-two million, one hundred sixteen thousand, six hundred eighty-three".