161226924017 has 2 divisors, whose sum is σ = 161226924018. Its totient is φ = 161226924016.

The previous prime is 161226923999. The next prime is 161226924101. The reversal of 161226924017 is 710429622161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102274598416 + 58952325601 = 319804^2 + 242801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161226924017 is a prime.

It is not a weakly prime, because it can be changed into another prime (161226920017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80613462008 + 80613462009.

It is an arithmetic number, because the mean of its divisors is an integer number (80613462009).

Almost surely, 2^161226924017 is an apocalyptic number.

It is an amenable number.

161226924017 is a deficient number, since it is larger than the sum of its proper divisors (1).

161226924017 is an equidigital number, since it uses as much as digits as its factorization.

161226924017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 161226924017 in words is "one hundred sixty-one billion, two hundred twenty-six million, nine hundred twenty-four thousand, seventeen".