1111666679 has 8 divisors (see below), whose sum is σ = 1133136432. Its totient is φ = 1090215360.

The previous prime is 1111666651. The next prime is 1111666691. The reversal of 1111666679 is 9766661111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1111666679 - 2²⁴ = 1094889463 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111666609) 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 7 ways as a sum of consecutive naturals, for example, 233012 + ... + 237734.

It is an arithmetic number, because the mean of its divisors is an integer number (141642054).

Almost surely, 2^1111666679 is an apocalyptic number.

1111666679 is a deficient number, since it is larger than the sum of its proper divisors (21469753).

1111666679 is an equidigital number, since it uses as much as digits as its factorization.

1111666679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9217.

The product of its digits is 81648, while the sum is 44.

The square root of 1111666679 is about 33341.6658102141. The cubic root of 1111666679 is about 1035.9167677477.

The spelling of 1111666679 in words is "one billion, one hundred eleven million, six hundred sixty-six thousand, six hundred seventy-nine".