161763376867 has 2 divisors, whose sum is σ = 161763376868. Its totient is φ = 161763376866.

The previous prime is 161763376849. The next prime is 161763376889. The reversal of 161763376867 is 768673367161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161763376867 - 2³¹ = 159615893219 is a prime.

It is not a weakly prime, because it can be changed into another prime (161763376807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80881688433 + 80881688434.

It is an arithmetic number, because the mean of its divisors is an integer number (80881688434).

Almost surely, 2^161763376867 is an apocalyptic number.

161763376867 is a deficient number, since it is larger than the sum of its proper divisors (1).

161763376867 is an equidigital number, since it uses as much as digits as its factorization.

161763376867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32006016, while the sum is 61.

The spelling of 161763376867 in words is "one hundred sixty-one billion, seven hundred sixty-three million, three hundred seventy-six thousand, eight hundred sixty-seven".