161763376863 has 16 divisors (see below), whose sum is σ = 237717881856. Its totient is φ = 97027703040.

The previous prime is 161763376849. The next prime is 161763376867. The reversal of 161763376863 is 368673367161.

It is not a de Polignac number, because 161763376863 - 2⁴ = 161763376847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161763376867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25264431 + ... + 25270832.

It is an arithmetic number, because the mean of its divisors is an integer number (14857367616).

Almost surely, 2^161763376863 is an apocalyptic number.

161763376863 is a deficient number, since it is larger than the sum of its proper divisors (75954504993).

161763376863 is a wasteful number, since it uses less digits than its factorization.

161763376863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50535374.

The product of its digits is 13716864, while the sum is 57.

The spelling of 161763376863 in words is "one hundred sixty-one billion, seven hundred sixty-three million, three hundred seventy-six thousand, eight hundred sixty-three".