11166610545 has 48 divisors (see below), whose sum is σ = 20253806352. Its totient is φ = 5685189120.

The previous prime is 11166610541. The next prime is 11166610547. The reversal of 11166610545 is 54501666111.

11166610545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 3202654464 + 7963956081 = 56592^2 + 89241^2 .

It is not a de Polignac number, because 11166610545 - 2² = 11166610541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11166610541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24975 + ... + 151515.

It is an arithmetic number, because the mean of its divisors is an integer number (421954299).

Almost surely, 2^11166610545 is an apocalyptic number.

11166610545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11166610545 is a deficient number, since it is larger than the sum of its proper divisors (9087195807).

11166610545 is a wasteful number, since it uses less digits than its factorization.

11166610545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126642 (or 126639 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 11166610545 in words is "eleven billion, one hundred sixty-six million, six hundred ten thousand, five hundred forty-five".