634663204122 has 16 divisors (see below), whose sum is σ = 1270767197952. Its totient is φ = 211314269760.

The previous prime is 634663204111. The next prime is 634663204139. The reversal of 634663204122 is 221402366436.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60027178 + ... + 60037749.

It is an arithmetic number, because the mean of its divisors is an integer number (79422949872).

Almost surely, 2^634663204122 is an apocalyptic number.

634663204122 is an abundant number, since it is smaller than the sum of its proper divisors (636103993830).

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

634663204122 is a wasteful number, since it uses less digits than its factorization.

634663204122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120065813.

The product of its (nonzero) digits is 248832, while the sum is 39.

The spelling of 634663204122 in words is "six hundred thirty-four billion, six hundred sixty-three million, two hundred four thousand, one hundred twenty-two".