1166611115112 has 32 divisors (see below), whose sum is σ = 2916857239200. Its totient is φ = 388826444864.

The previous prime is 1166611115083. The next prime is 1166611115167. The reversal of 1166611115112 is 2115111166611.

It is a super-2 number, since 2×1166611115112² (a number of 25 digits) contains 22 as substring.

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, 2528187 + ... + 2953802.

It is an arithmetic number, because the mean of its divisors is an integer number (91151788725).

Almost surely, 2^{1166611115112} is an apocalyptic number.

1166611115112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1166611115112 is an abundant number, since it is smaller than the sum of its proper divisors (1750246124088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1166611115112 is a wasteful number, since it uses less digits than its factorization.

1166611115112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5490865 (or 5490861 counting only the distinct ones).

The product of its digits is 2160, while the sum is 33.

The spelling of 1166611115112 in words is "one trillion, one hundred sixty-six billion, six hundred eleven million, one hundred fifteen thousand, one hundred twelve".