199103299956761 has 2 divisors, whose sum is σ = 199103299956762. Its totient is φ = 199103299956760.

The previous prime is 199103299956731. The next prime is 199103299956791. The reversal of 199103299956761 is 167659992301991.

199103299956761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (199103299956731) and next prime (199103299956791).

It can be written as a sum of positive squares in only one way, i.e., 187009563420736 + 12093736536025 = 13675144^2 + 3477605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199103299956761 is a prime.

It is a super-2 number, since 2×199103299956761² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (199103299956721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99551649978380 + 99551649978381.

It is an arithmetic number, because the mean of its divisors is an integer number (99551649978381).

Almost surely, 2^{199103299956761} is an apocalyptic number.

It is an amenable number.

199103299956761 is a deficient number, since it is larger than the sum of its proper divisors (1).

199103299956761 is an equidigital number, since it uses as much as digits as its factorization.

199103299956761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 446410440, while the sum is 77.

The spelling of 199103299956761 in words is "one hundred ninety-nine trillion, one hundred three billion, two hundred ninety-nine million, nine hundred fifty-six thousand, seven hundred sixty-one".