199723960346 has 16 divisors (see below), whose sum is σ = 311215359168. Its totient is φ = 96054117600.

The previous prime is 199723960291. The next prime is 199723960351. The reversal of 199723960346 is 643069327991.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17146700 + ... + 17158343.

It is an arithmetic number, because the mean of its divisors is an integer number (19450959948).

Almost surely, 2^199723960346 is an apocalyptic number.

199723960346 is a deficient number, since it is larger than the sum of its proper divisors (111491398822).

199723960346 is a wasteful number, since it uses less digits than its factorization.

199723960346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34305157.

The product of its (nonzero) digits is 13226976, while the sum is 59.

The spelling of 199723960346 in words is "one hundred ninety-nine billion, seven hundred twenty-three million, nine hundred sixty thousand, three hundred forty-six".