199964416 has 18 divisors (see below), whose sum is σ = 399148232. Its totient is φ = 99982080.

The previous prime is 199964411. The next prime is 199964419. The reversal of 199964416 is 614469991.

199964416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 199964416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199964411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 390300 + ... + 390811.

Almost surely, 2^199964416 is an apocalyptic number.

199964416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

199964416 is a deficient number, since it is larger than the sum of its proper divisors (199183816).

199964416 is an frugal number, since it uses more digits than its factorization.

199964416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781127 (or 781113 counting only the distinct ones).

The product of its digits is 419904, while the sum is 49.

The square root of 199964416 is about 14140.8774833813. The cubic root of 199964416 is about 584.7688628364.

The spelling of 199964416 in words is "one hundred ninety-nine million, nine hundred sixty-four thousand, four hundred sixteen".