3291236673161 has 2 divisors, whose sum is σ = 3291236673162. Its totient is φ = 3291236673160.

The previous prime is 3291236673113. The next prime is 3291236673187. The reversal of 3291236673161 is 1613766321923.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3220517376400 + 70719296761 = 1794580^2 + 265931^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3291236673161 is a prime.

It is not a weakly prime, because it can be changed into another prime (3291236673661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1645618336580 + 1645618336581.

It is an arithmetic number, because the mean of its divisors is an integer number (1645618336581).

Almost surely, 2^{3291236673161} is an apocalyptic number.

It is an amenable number.

3291236673161 is a deficient number, since it is larger than the sum of its proper divisors (1).

3291236673161 is an equidigital number, since it uses as much as digits as its factorization.

3291236673161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1469664, while the sum is 50.

The spelling of 3291236673161 in words is "three trillion, two hundred ninety-one billion, two hundred thirty-six million, six hundred seventy-three thousand, one hundred sixty-one".