633998085198 has 16 divisors (see below), whose sum is σ = 1281068297040. Its totient is φ = 209154007296.

The previous prime is 633998085191. The next prime is 633998085229. The reversal of 633998085198 is 891580899336.

633998085198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633998085191) 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, 544671313 + ... + 544672476.

It is an arithmetic number, because the mean of its divisors is an integer number (80066768565).

Almost surely, 2^633998085198 is an apocalyptic number.

633998085198 is an abundant number, since it is smaller than the sum of its proper divisors (647070211842).

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

633998085198 is a wasteful number, since it uses less digits than its factorization.

633998085198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089343891.

The product of its (nonzero) digits is 100776960, while the sum is 69.

The spelling of 633998085198 in words is "six hundred thirty-three billion, nine hundred ninety-eight million, eighty-five thousand, one hundred ninety-eight".