199169916 has 48 divisors (see below), whose sum is σ = 523342848. Its totient is φ = 58406400.

The previous prime is 199169891. The next prime is 199169917. The reversal of 199169916 is 619961991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199169917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20245 + ... + 28428.

It is an arithmetic number, because the mean of its divisors is an integer number (10902976).

Almost surely, 2^199169916 is an apocalyptic number.

It is an amenable number.

199169916 is an abundant number, since it is smaller than the sum of its proper divisors (324172932).

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

199169916 is a wasteful number, since it uses less digits than its factorization.

199169916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48722 (or 48720 counting only the distinct ones).

The product of its digits is 236196, while the sum is 51.

The square root of 199169916 is about 14112.7572075764. The cubic root of 199169916 is about 583.9933656280.

The spelling of 199169916 in words is "one hundred ninety-nine million, one hundred sixty-nine thousand, nine hundred sixteen".