198550485050 has 24 divisors (see below), whose sum is σ = 382038522300. Its totient is φ = 76681566080.

The previous prime is 198550485043. The next prime is 198550485097. The reversal of 198550485050 is 50584055891.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 100103264881 + 98447220169 = 316391^2 + 313763^2 .

It is a super-2 number, since 2×198550485050² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a self number, because there is not a number n which added to its sum of digits gives 198550485050.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68464235 + ... + 68467134.

Almost surely, 2^198550485050 is an apocalyptic number.

198550485050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198550485050 is a deficient number, since it is larger than the sum of its proper divisors (183488037250).

198550485050 is a wasteful number, since it uses less digits than its factorization.

198550485050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136931410 (or 136931405 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 50.

The spelling of 198550485050 in words is "one hundred ninety-eight billion, five hundred fifty million, four hundred eighty-five thousand, fifty".