111669033965449 has 9 divisors (see below), whose sum is σ = 111852964940301. Its totient is φ = 111485405002860.

The previous prime is 111669033965417. The next prime is 111669033965459. The reversal of 111669033965449 is 944569330966111.

The square root of 111669033965449 is 10567357.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 111669033965449 - 2⁵ = 111669033965417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111669033965459) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6667993894 + ... + 6668010640.

It is an arithmetic number, because the mean of its divisors is an integer number (12428107215589).

Almost surely, 2^{111669033965449} is an apocalyptic number.

111669033965449 is the 10567357-th square number.

111669033965449 is the 5283679-th centered octagonal number.

It is an amenable number.

111669033965449 is a deficient number, since it is larger than the sum of its proper divisors (183930974852).

111669033965449 is an frugal number, since it uses more digits than its factorization.

111669033965449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34756 (or 17378 counting only the distinct ones).

The product of its (nonzero) digits is 113374080, while the sum is 67.

The spelling of 111669033965449 in words is "one hundred eleven trillion, six hundred sixty-nine billion, thirty-three million, nine hundred sixty-five thousand, four hundred forty-nine".