161345308807 has 2 divisors, whose sum is σ = 161345308808. Its totient is φ = 161345308806.

The previous prime is 161345308793. The next prime is 161345308877. The reversal of 161345308807 is 708803543161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161345308807 - 2⁷ = 161345308679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161345308877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80672654403 + 80672654404.

It is an arithmetic number, because the mean of its divisors is an integer number (80672654404).

Almost surely, 2^161345308807 is an apocalyptic number.

161345308807 is a deficient number, since it is larger than the sum of its proper divisors (1).

161345308807 is an equidigital number, since it uses as much as digits as its factorization.

161345308807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 161345308807 in words is "one hundred sixty-one billion, three hundred forty-five million, three hundred eight thousand, eight hundred seven".