198416656 has 20 divisors (see below), whose sum is σ = 407046492. Its totient is φ = 93372416.

The previous prime is 198416633. The next prime is 198416723. The reversal of 198416656 is 656614891.

It can be written as a sum of positive squares in 2 ways, for example, as 157251600 + 41165056 = 12540^2 + 6416^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 364465 + ... + 365008.

Almost surely, 2^198416656 is an apocalyptic number.

198416656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

198416656 is an abundant number, since it is smaller than the sum of its proper divisors (208629836).

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

198416656 is a wasteful number, since it uses less digits than its factorization.

198416656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729498 (or 729492 counting only the distinct ones).

The product of its digits is 311040, while the sum is 46.

The square root of 198416656 is about 14086.0447251881. The cubic root of 198416656 is about 583.2562151839.

The spelling of 198416656 in words is "one hundred ninety-eight million, four hundred sixteen thousand, six hundred fifty-six".