11165532125 has 24 divisors (see below), whose sum is σ = 15316547064. Its totient is φ = 8120376000.

The previous prime is 11165532109. The next prime is 11165532127. The reversal of 11165532125 is 52123556111.

It can be written as a sum of positive squares in 4 ways, for example, as 213072409 + 10952459716 = 14597^2 + 104654^2 .

It is not a de Polignac number, because 11165532125 - 2⁴ = 11165532109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11165532091 and 11165532100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11165532127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 353984 + ... + 384233.

It is an arithmetic number, because the mean of its divisors is an integer number (638189461).

Almost surely, 2^11165532125 is an apocalyptic number.

It is an amenable number.

11165532125 is a deficient number, since it is larger than the sum of its proper divisors (4151014939).

11165532125 is an equidigital number, since it uses as much as digits as its factorization.

11165532125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738254 (or 738233 counting only the distinct ones).

The product of its digits is 9000, while the sum is 32.

The spelling of 11165532125 in words is "eleven billion, one hundred sixty-five million, five hundred thirty-two thousand, one hundred twenty-five".