198671616 has 360 divisors, whose sum is σ = 706357344. Its totient is φ = 54743040.

The previous prime is 198671593. The next prime is 198671621. The reversal of 198671616 is 616176891.

It is a super-2 number, since 2×198671616² = 78940822008102912, which contains 22 as substring.

Its product of digits (108864) is a multiple of the sum of its prime divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2965215 + ... + 2965281.

Almost surely, 2^198671616 is an apocalyptic number.

198671616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198671616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353178672).

198671616 is an abundant number, since it is smaller than the sum of its proper divisors (507685728).

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

198671616 is a wasteful number, since it uses less digits than its factorization.

198671616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119 (or 96 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 198671616 is about 14095.0919117259. The cubic root of 198671616 is about 583.5059310398.

The spelling of 198671616 in words is "one hundred ninety-eight million, six hundred seventy-one thousand, six hundred sixteen".