161226924113 has 2 divisors, whose sum is σ = 161226924114. Its totient is φ = 161226924112.

The previous prime is 161226924101. The next prime is 161226924143. The reversal of 161226924113 is 311429622161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101969732929 + 59257191184 = 319327^2 + 243428^2 .

It is a cyclic number.

It is not a de Polignac number, because 161226924113 - 2¹² = 161226920017 is a prime.

It is not a weakly prime, because it can be changed into another prime (161226924143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80613462056 + 80613462057.

It is an arithmetic number, because the mean of its divisors is an integer number (80613462057).

Almost surely, 2^161226924113 is an apocalyptic number.

It is an amenable number.

161226924113 is a deficient number, since it is larger than the sum of its proper divisors (1).

161226924113 is an equidigital number, since it uses as much as digits as its factorization.

161226924113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 38.

The spelling of 161226924113 in words is "one hundred sixty-one billion, two hundred twenty-six million, nine hundred twenty-four thousand, one hundred thirteen".