641116198 has 16 divisors (see below), whose sum is σ = 966150000. Its totient is φ = 319070592.

The previous prime is 641116181. The next prime is 641116199. The reversal of 641116198 is 891611146.

It is a super-2 number, since 2×641116198² = 822059958675950408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641116199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567298 + ... + 568426.

It is an arithmetic number, because the mean of its divisors is an integer number (60384375).

Almost surely, 2^641116198 is an apocalyptic number.

641116198 is a deficient number, since it is larger than the sum of its proper divisors (325033802).

641116198 is a wasteful number, since it uses less digits than its factorization.

641116198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199.

The product of its digits is 10368, while the sum is 37.

The square root of 641116198 is about 25320.2724708878. The cubic root of 641116198 is about 862.2745799755.

The spelling of 641116198 in words is "six hundred forty-one million, one hundred sixteen thousand, one hundred ninety-eight".