6746990161 has 2 divisors, whose sum is σ = 6746990162. Its totient is φ = 6746990160.

The previous prime is 6746990093. The next prime is 6746990167. The reversal of 6746990161 is 1610996476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5715360000 + 1031630161 = 75600^2 + 32119^2 .

It is a cyclic number.

It is not a de Polignac number, because 6746990161 - 2¹¹ = 6746988113 is a prime.

It is not a weakly prime, because it can be changed into another prime (6746990167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3373495080 + 3373495081.

It is an arithmetic number, because the mean of its divisors is an integer number (3373495081).

Almost surely, 2^6746990161 is an apocalyptic number.

It is an amenable number.

6746990161 is a deficient number, since it is larger than the sum of its proper divisors (1).

6746990161 is an equidigital number, since it uses as much as digits as its factorization.

6746990161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 6746990161 is about 82140.0642865587. The cubic root of 6746990161 is about 1889.6006323759.

The spelling of 6746990161 in words is "six billion, seven hundred forty-six million, nine hundred ninety thousand, one hundred sixty-one".