161290412071 has 2 divisors, whose sum is σ = 161290412072. Its totient is φ = 161290412070.

The previous prime is 161290412051. The next prime is 161290412123. The reversal of 161290412071 is 170214092161.

It is a weak prime.

It is an emirp because it is prime and its reverse (170214092161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 161290412071 - 2⁷ = 161290411943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161290412021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80645206035 + 80645206036.

It is an arithmetic number, because the mean of its divisors is an integer number (80645206036).

Almost surely, 2^161290412071 is an apocalyptic number.

161290412071 is a deficient number, since it is larger than the sum of its proper divisors (1).

161290412071 is an equidigital number, since it uses as much as digits as its factorization.

161290412071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 34.

The spelling of 161290412071 in words is "one hundred sixty-one billion, two hundred ninety million, four hundred twelve thousand, seventy-one".