11123457166 has 16 divisors (see below), whose sum is σ = 17691561360. Its totient is φ = 5230543680.

The previous prime is 11123457143. The next prime is 11123457211. The reversal of 11123457166 is 66175432111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1063125 + ... + 1073536.

It is an arithmetic number, because the mean of its divisors is an integer number (1105722585).

Almost surely, 2^11123457166 is an apocalyptic number.

11123457166 is a deficient number, since it is larger than the sum of its proper divisors (6568104194).

11123457166 is a wasteful number, since it uses less digits than its factorization.

11123457166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136819.

The product of its digits is 30240, while the sum is 37.

Adding to 11123457166 its reverse (66175432111), we get a palindrome (77298889277).

The spelling of 11123457166 in words is "eleven billion, one hundred twenty-three million, four hundred fifty-seven thousand, one hundred sixty-six".