636116302844 has 24 divisors (see below), whose sum is σ = 1214670492336. Its totient is φ = 289080288000.

The previous prime is 636116302841. The next prime is 636116302853. The reversal of 636116302844 is 448203611636.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 636116302795 and 636116302804.

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 7 ways as a sum of consecutive naturals, for example, 1384187 + ... + 1785554.

It is an arithmetic number, because the mean of its divisors is an integer number (50611270514).

Almost surely, 2^636116302844 is an apocalyptic number.

It is an amenable number.

636116302844 is a deficient number, since it is larger than the sum of its proper divisors (578554189492).

636116302844 is a wasteful number, since it uses less digits than its factorization.

636116302844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3174317 (or 3174315 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 636116302844 in words is "six hundred thirty-six billion, one hundred sixteen million, three hundred two thousand, eight hundred forty-four".