311116669 has 8 divisors (see below), whose sum is σ = 322419960. Its totient is φ = 299851776.

The previous prime is 311116667. The next prime is 311116681. The reversal of 311116669 is 966611113.

It can be written as a sum of positive squares in 4 ways, for example, as 159087769 + 152028900 = 12613^2 + 12330^2 .

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 311116669 - 2¹ = 311116667 is a prime.

It is a super-2 number, since 2×311116669² = 193587163459311122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311116667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7437 + ... + 26029.

It is an arithmetic number, because the mean of its divisors is an integer number (40302495).

Almost surely, 2^311116669 is an apocalyptic number.

It is an amenable number.

311116669 is a deficient number, since it is larger than the sum of its proper divisors (11303291).

311116669 is a wasteful number, since it uses less digits than its factorization.

311116669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19199.

The product of its digits is 5832, while the sum is 34.

The square root of 311116669 is about 17638.4996244012. The cubic root of 311116669 is about 677.6016061987.

The spelling of 311116669 in words is "three hundred eleven million, one hundred sixteen thousand, six hundred sixty-nine".