199689354338346 has 48 divisors (see below), whose sum is σ = 458124167217600. Its totient is φ = 62645822388864.

The previous prime is 199689354338323. The next prime is 199689354338563. The reversal of 199689354338346 is 643833453986991.

199689354338346 is a `hidden beast` number, since 1 + 9 + 9 + 6 + 8 + 9 + 3 + 543 + 38 + 34 + 6 = 666.

199689354338346 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (81) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1110345 + ... + 20015283.

It is an arithmetic number, because the mean of its divisors is an integer number (9544253483700).

Almost surely, 2^{199689354338346} is an apocalyptic number.

199689354338346 is an abundant number, since it is smaller than the sum of its proper divisors (258434812879254).

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

199689354338346 is a wasteful number, since it uses less digits than its factorization.

199689354338346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18939483 (or 18939480 counting only the distinct ones).

The product of its digits is 10883911680, while the sum is 81.

The spelling of 199689354338346 in words is "one hundred ninety-nine trillion, six hundred eighty-nine billion, three hundred fifty-four million, three hundred thirty-eight thousand, three hundred forty-six".