191680922305 has 16 divisors (see below), whose sum is σ = 242180870400. Its totient is φ = 145239402240.

The previous prime is 191680922297. The next prime is 191680922347. The reversal of 191680922305 is 503229086191.

It is not a de Polignac number, because 191680922305 - 2³ = 191680922297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165016 + ... + 640774.

It is an arithmetic number, because the mean of its divisors is an integer number (15136304400).

Almost surely, 2^191680922305 is an apocalyptic number.

It is an amenable number.

191680922305 is a deficient number, since it is larger than the sum of its proper divisors (50499948095).

191680922305 is a wasteful number, since it uses less digits than its factorization.

191680922305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480024.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 191680922305 in words is "one hundred ninety-one billion, six hundred eighty million, nine hundred twenty-two thousand, three hundred five".