111065560225 has 9 divisors (see below), whose sum is σ = 137723360953. Its totient is φ = 88851115120.

The previous prime is 111065560153. The next prime is 111065560247. The reversal of 111065560225 is 522065560111.

The square root of 111065560225 is 333265.

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 65757883489 + 45307676736 = 256433^2 + 212856^2 .

It is not a de Polignac number, because 111065560225 - 2²⁷ = 110931342497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1632999 + ... + 1699651.

Almost surely, 2^111065560225 is an apocalyptic number.

111065560225 is the 333265-th square number.

111065560225 is the 166633-rd centered octagonal number.

It is an amenable number.

111065560225 is a deficient number, since it is larger than the sum of its proper divisors (26657800728).

111065560225 is an frugal number, since it uses more digits than its factorization.

111065560225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133316 (or 66658 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 111065560225 in words is "one hundred eleven billion, sixty-five million, five hundred sixty thousand, two hundred twenty-five".