1166111106667 has 4 divisors (see below), whose sum is σ = 1255811961040. Its totient is φ = 1076410252296.

The previous prime is 1166111106653. The next prime is 1166111106679. The reversal of 1166111106667 is 7666011116611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1166111106667 - 2³⁵ = 1131751368299 is a prime.

It is a super-3 number, since 3×1166111106667³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1166111106637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44850427167 + ... + 44850427192.

It is an arithmetic number, because the mean of its divisors is an integer number (313952990260).

Almost surely, 2^{1166111106667} is an apocalyptic number.

1166111106667 is a deficient number, since it is larger than the sum of its proper divisors (89700854373).

1166111106667 is an equidigital number, since it uses as much as digits as its factorization.

1166111106667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89700854372.

The product of its (nonzero) digits is 54432, while the sum is 43.

The spelling of 1166111106667 in words is "one trillion, one hundred sixty-six billion, one hundred eleven million, one hundred six thousand, six hundred sixty-seven".