198091493140100 has 36 divisors (see below), whose sum is σ = 491266902989184. Its totient is φ = 67917083362080.

The previous prime is 198091493140087. The next prime is 198091493140159. The reversal of 198091493140100 is 1041394190891.

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

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, 141493922972 + ... + 141493924371.

Almost surely, 2^{198091493140100} is an apocalyptic number.

198091493140100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198091493140100 is an abundant number, since it is smaller than the sum of its proper divisors (293175409849084).

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

198091493140100 is a wasteful number, since it uses less digits than its factorization.

198091493140100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282987847364 (or 282987847357 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 50.

The spelling of 198091493140100 in words is "one hundred ninety-eight trillion, ninety-one billion, four hundred ninety-three million, one hundred forty thousand, one hundred".