161314798449 has 8 divisors (see below), whose sum is σ = 245813026240. Its totient is φ = 92179884816.

The previous prime is 161314798441. The next prime is 161314798451. The reversal of 161314798449 is 944897413161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 161314798449 - 2³ = 161314798441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (161314798441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3840828514 + ... + 3840828555.

It is an arithmetic number, because the mean of its divisors is an integer number (30726628280).

Almost surely, 2^161314798449 is an apocalyptic number.

It is an amenable number.

161314798449 is a deficient number, since it is larger than the sum of its proper divisors (84498227791).

161314798449 is an equidigital number, since it uses as much as digits as its factorization.

161314798449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7681657079.

The product of its digits is 5225472, while the sum is 57.

The spelling of 161314798449 in words is "one hundred sixty-one billion, three hundred fourteen million, seven hundred ninety-eight thousand, four hundred forty-nine".