636622116087 has 16 divisors (see below), whose sum is σ = 850096027872. Its totient is φ = 423781862400.

The previous prime is 636622116079. The next prime is 636622116131. The reversal of 636622116087 is 780611226636.

636622116087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 636622116087 - 2³ = 636622116079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (636622116007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6747337 + ... + 6841037.

It is an arithmetic number, because the mean of its divisors is an integer number (53131001742).

Almost surely, 2^636622116087 is an apocalyptic number.

636622116087 is a deficient number, since it is larger than the sum of its proper divisors (213473911785).

636622116087 is a wasteful number, since it uses less digits than its factorization.

636622116087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97058.

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 636622116087 in words is "six hundred thirty-six billion, six hundred twenty-two million, one hundred sixteen thousand, eighty-seven".