6683198261 has 2 divisors, whose sum is σ = 6683198262. Its totient is φ = 6683198260.

The previous prime is 6683198243. The next prime is 6683198267. The reversal of 6683198261 is 1628913866.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4538582161 + 2144616100 = 67369^2 + 46310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6683198261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6683198267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3341599130 + 3341599131.

It is an arithmetic number, because the mean of its divisors is an integer number (3341599131).

Almost surely, 2^6683198261 is an apocalyptic number.

It is an amenable number.

6683198261 is a deficient number, since it is larger than the sum of its proper divisors (1).

6683198261 is an equidigital number, since it uses as much as digits as its factorization.

6683198261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 50.

The square root of 6683198261 is about 81750.8303382908. The cubic root of 6683198261 is about 1883.6264562232.

The spelling of 6683198261 in words is "six billion, six hundred eighty-three million, one hundred ninety-eight thousand, two hundred sixty-one".