199103299956791 has 2 divisors, whose sum is σ = 199103299956792. Its totient is φ = 199103299956790.

The previous prime is 199103299956761. The next prime is 199103299956793. The reversal of 199103299956791 is 197659992301991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199103299956791 - 2²² = 199103295762487 is a prime.

It is a Sophie Germain prime.

Together with 199103299956793, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199103299956793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99551649978395 + 99551649978396.

It is an arithmetic number, because the mean of its divisors is an integer number (99551649978396).

Almost surely, 2^{199103299956791} is an apocalyptic number.

199103299956791 is a deficient number, since it is larger than the sum of its proper divisors (1).

199103299956791 is an equidigital number, since it uses as much as digits as its factorization.

199103299956791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 669615660, while the sum is 80.

The spelling of 199103299956791 in words is "one hundred ninety-nine trillion, one hundred three billion, two hundred ninety-nine million, nine hundred fifty-six thousand, seven hundred ninety-one".