198556416 has 54 divisors (see below), whose sum is σ = 572493740. Its totient is φ = 66184704.

The previous prime is 198556411. The next prime is 198556453. The reversal of 198556416 is 614655891.

198556416 is a `hidden beast` number, since 1 + 9 + 85 + 564 + 1 + 6 = 666.

198556416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (198556411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40786 + ... + 45393.

Almost surely, 2^198556416 is an apocalyptic number.

198556416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

198556416 is an abundant number, since it is smaller than the sum of its proper divisors (373937324).

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

198556416 is an equidigital number, since it uses as much as digits as its factorization.

198556416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86201 (or 86184 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 198556416 is about 14091.0047902909. The cubic root of 198556416 is about 583.3931270045.

The spelling of 198556416 in words is "one hundred ninety-eight million, five hundred fifty-six thousand, four hundred sixteen".