13669117225 has 27 divisors (see below), whose sum is σ = 17255905317. Its totient is φ = 10741214880.

The previous prime is 13669117193. The next prime is 13669117283. The reversal of 13669117225 is 52271196631.

The square root of 13669117225 is 116915.

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

It can be written as a sum of positive squares in 4 ways, for example, as 140635881 + 13528481344 = 11859^2 + 116312^2 .

It is not a de Polignac number, because 13669117225 - 2⁵ = 13669117193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 39166351 + ... + 39166699.

Almost surely, 2^13669117225 is an apocalyptic number.

13669117225 is the 116915-th square number.

13669117225 is the 58458-th centered octagonal number.

It is an amenable number.

13669117225 is a deficient number, since it is larger than the sum of its proper divisors (3586788092).

13669117225 is an frugal number, since it uses more digits than its factorization.

13669117225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842 (or 421 counting only the distinct ones).

The product of its digits is 136080, while the sum is 43.

The spelling of 13669117225 in words is "thirteen billion, six hundred sixty-nine million, one hundred seventeen thousand, two hundred twenty-five".