636116302845 has 12 divisors (see below), whose sum is σ = 1102601591676. Its totient is φ = 339262028160.

The previous prime is 636116302841. The next prime is 636116302853. The reversal of 636116302845 is 548203611636.

636116302845 is a `hidden beast` number, since 6 + 3 + 6 + 1 + 1 + 630 + 2 + 8 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 329850354276 + 306265948569 = 574326^2 + 553413^2 .

It is not a de Polignac number, because 636116302845 - 2² = 636116302841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 14135917841 = 636116302845 / (6 + 3 + 6 + 1 + 1 + 6 + 3 + 0 + 2 + 8 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 636116302845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (636116302841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7067958876 + ... + 7067958965.

It is an arithmetic number, because the mean of its divisors is an integer number (91883465973).

Almost surely, 2^636116302845 is an apocalyptic number.

It is an amenable number.

636116302845 is a deficient number, since it is larger than the sum of its proper divisors (466485288831).

636116302845 is a wasteful number, since it uses less digits than its factorization.

636116302845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14135917852 (or 14135917849 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

It can be divided in two parts, 636116 and 302845, that added together give a square (938961 = 969²).

The spelling of 636116302845 in words is "six hundred thirty-six billion, one hundred sixteen million, three hundred two thousand, eight hundred forty-five".