11666667899 has 2 divisors, whose sum is σ = 11666667900. Its totient is φ = 11666667898.

The previous prime is 11666667827. The next prime is 11666667931. The reversal of 11666667899 is 99876666611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11666667899 - 2²⁰ = 11665619323 is a prime.

It is a super-2 number, since 2×11666667899² (a number of 21 digits) contains 22 as substring.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (11666667599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5833333949 + 5833333950.

It is an arithmetic number, because the mean of its divisors is an integer number (5833333950).

Almost surely, 2^11666667899 is an apocalyptic number.

11666667899 is a deficient number, since it is larger than the sum of its proper divisors (1).

11666667899 is an equidigital number, since it uses as much as digits as its factorization.

11666667899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35271936, while the sum is 65.

The spelling of 11666667899 in words is "eleven billion, six hundred sixty-six million, six hundred sixty-seven thousand, eight hundred ninety-nine".