11666729983 has 2 divisors, whose sum is σ = 11666729984. Its totient is φ = 11666729982.

The previous prime is 11666729947. The next prime is 11666730041. The reversal of 11666729983 is 38992766611.

It is an a-pointer prime, because the next prime (11666730041) can be obtained adding 11666729983 to its sum of digits (58).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11666729983 - 2²⁵ = 11633175551 is a prime.

It is a super-2 number, since 2×11666729983² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11666729933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5833364991 + 5833364992.

It is an arithmetic number, because the mean of its divisors is an integer number (5833364992).

Almost surely, 2^11666729983 is an apocalyptic number.

11666729983 is a deficient number, since it is larger than the sum of its proper divisors (1).

11666729983 is an equidigital number, since it uses as much as digits as its factorization.

11666729983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 58.

The spelling of 11666729983 in words is "eleven billion, six hundred sixty-six million, seven hundred twenty-nine thousand, nine hundred eighty-three".