161379737263 has 2 divisors, whose sum is σ = 161379737264. Its totient is φ = 161379737262.

The previous prime is 161379737251. The next prime is 161379737303. The reversal of 161379737263 is 362737973161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161379737263 - 2⁵ = 161379737231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161379737663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80689868631 + 80689868632.

It is an arithmetic number, because the mean of its divisors is an integer number (80689868632).

Almost surely, 2^161379737263 is an apocalyptic number.

161379737263 is a deficient number, since it is larger than the sum of its proper divisors (1).

161379737263 is an equidigital number, since it uses as much as digits as its factorization.

161379737263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6001128, while the sum is 55.

The spelling of 161379737263 in words is "one hundred sixty-one billion, three hundred seventy-nine million, seven hundred thirty-seven thousand, two hundred sixty-three".