10665113620225 has 24 divisors (see below), whose sum is σ = 13298085173880. Its totient is φ = 8484902200320.

The previous prime is 10665113620219. The next prime is 10665113620237. The reversal of 10665113620225 is 52202631156601.

It can be written as a sum of positive squares in 12 ways, for example, as 8844295332096 + 1820818288129 = 2973936^2 + 1349377^2 .

It is not a de Polignac number, because 10665113620225 - 2⁵ = 10665113620193 is a prime.

It is a super-2 number, since 2×10665113620225² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1650219 + ... + 4904431.

It is an arithmetic number, because the mean of its divisors is an integer number (554086882245).

Almost surely, 2^{10665113620225} is an apocalyptic number.

It is an amenable number.

10665113620225 is a deficient number, since it is larger than the sum of its proper divisors (2632971553655).

10665113620225 is a wasteful number, since it uses less digits than its factorization.

10665113620225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3254949 (or 3254944 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

Adding to 10665113620225 its reverse (52202631156601), we get a palindrome (62867744776826).

The spelling of 10665113620225 in words is "ten trillion, six hundred sixty-five billion, one hundred thirteen million, six hundred twenty thousand, two hundred twenty-five".