198763155552 has 48 divisors (see below), whose sum is σ = 561888154800. Its totient is φ = 61157893632.

The previous prime is 198763155551. The next prime is 198763155557. The reversal of 198763155552 is 255551367891.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 198763155492 and 198763155501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198763155551) 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, 79631427 + ... + 79633922.

It is an arithmetic number, because the mean of its divisors is an integer number (11706003225).

Almost surely, 2^198763155552 is an apocalyptic number.

198763155552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198763155552 is an abundant number, since it is smaller than the sum of its proper divisors (363124999248).

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

198763155552 is a wasteful number, since it uses less digits than its factorization.

198763155552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159265375 (or 159265367 counting only the distinct ones).

The product of its digits is 11340000, while the sum is 57.

The spelling of 198763155552 in words is "one hundred ninety-eight billion, seven hundred sixty-three million, one hundred fifty-five thousand, five hundred fifty-two".