636728200222 has 16 divisors (see below), whose sum is σ = 1037791296000. Its totient is φ = 291878800920.

The previous prime is 636728200219. The next prime is 636728200243. The reversal of 636728200222 is 222002827636.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270256972 + ... + 270259327.

It is an arithmetic number, because the mean of its divisors is an integer number (64861956000).

Almost surely, 2^636728200222 is an apocalyptic number.

636728200222 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

636728200222 is a deficient number, since it is larger than the sum of its proper divisors (401063095778).

636728200222 is a wasteful number, since it uses less digits than its factorization.

636728200222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540516351.

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 636728200222 in words is "six hundred thirty-six billion, seven hundred twenty-eight million, two hundred thousand, two hundred twenty-two".