3161645163847 has 2 divisors, whose sum is σ = 3161645163848. Its totient is φ = 3161645163846.

The previous prime is 3161645163829. The next prime is 3161645163851. The reversal of 3161645163847 is 7483615461613.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3161645163847 - 2¹¹ = 3161645161799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3161645163827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1580822581923 + 1580822581924.

It is an arithmetic number, because the mean of its divisors is an integer number (1580822581924).

Almost surely, 2^{3161645163847} is an apocalyptic number.

3161645163847 is a deficient number, since it is larger than the sum of its proper divisors (1).

3161645163847 is an equidigital number, since it uses as much as digits as its factorization.

3161645163847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 55.

The spelling of 3161645163847 in words is "three trillion, one hundred sixty-one billion, six hundred forty-five million, one hundred sixty-three thousand, eight hundred forty-seven".