636621150622146 has 32 divisors (see below), whose sum is σ = 1342538282453760. Its totient is φ = 200695773814416.

The previous prime is 636621150622111. The next prime is 636621150622211. The reversal of 636621150622146 is 641226051126636.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4756658856 + ... + 4756792691.

It is an arithmetic number, because the mean of its divisors is an integer number (41954321326680).

Almost surely, 2^{636621150622146} is an apocalyptic number.

636621150622146 is an abundant number, since it is smaller than the sum of its proper divisors (705917131831614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

636621150622146 is a wasteful number, since it uses less digits than its factorization.

636621150622146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9513452158.

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 636621150622146 in words is "six hundred thirty-six trillion, six hundred twenty-one billion, one hundred fifty million, six hundred twenty-two thousand, one hundred forty-six".