198057032806 has 8 divisors (see below), whose sum is σ = 297148332384. Its totient is φ = 99007588680.

The previous prime is 198057032779. The next prime is 198057032837. The reversal of 198057032806 is 608230750891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 198057032806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10452030 + ... + 10470961.

It is an arithmetic number, because the mean of its divisors is an integer number (37143541548).

Almost surely, 2^198057032806 is an apocalyptic number.

198057032806 is a deficient number, since it is larger than the sum of its proper divisors (99091299578).

198057032806 is a wasteful number, since it uses less digits than its factorization.

198057032806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20927726.

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 198057032806 in words is "one hundred ninety-eight billion, fifty-seven million, thirty-two thousand, eight hundred six".