161056618052287 has 2 divisors, whose sum is σ = 161056618052288. Its totient is φ = 161056618052286.

The previous prime is 161056618052179. The next prime is 161056618052387. The reversal of 161056618052287 is 782250816650161.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161056618052287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161056618052387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80528309026143 + 80528309026144.

It is an arithmetic number, because the mean of its divisors is an integer number (80528309026144).

Almost surely, 2^{161056618052287} is an apocalyptic number.

161056618052287 is a deficient number, since it is larger than the sum of its proper divisors (1).

161056618052287 is an equidigital number, since it uses as much as digits as its factorization.

161056618052287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9676800, while the sum is 58.

The spelling of 161056618052287 in words is "one hundred sixty-one trillion, fifty-six billion, six hundred eighteen million, fifty-two thousand, two hundred eighty-seven".