191600941291 has 2 divisors, whose sum is σ = 191600941292. Its totient is φ = 191600941290.

The previous prime is 191600941223. The next prime is 191600941339. The reversal of 191600941291 is 192149006191.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-191600941291 is a prime.

It is not a weakly prime, because it can be changed into another prime (191600941991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95800470645 + 95800470646.

It is an arithmetic number, because the mean of its divisors is an integer number (95800470646).

Almost surely, 2^191600941291 is an apocalyptic number.

191600941291 is a deficient number, since it is larger than the sum of its proper divisors (1).

191600941291 is an equidigital number, since it uses as much as digits as its factorization.

191600941291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 43.

The spelling of 191600941291 in words is "one hundred ninety-one billion, six hundred million, nine hundred forty-one thousand, two hundred ninety-one".