11666823744 has 28 divisors (see below), whose sum is σ = 30868471664. Its totient is φ = 3888941184.

The previous prime is 11666823691. The next prime is 11666823787. The reversal of 11666823744 is 44732866611.

It is a super-2 number, since 2×11666823744² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 11666823693 and 11666823702.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30382162 + ... + 30382545.

Almost surely, 2^11666823744 is an apocalyptic number.

It is an amenable number.

11666823744 is an abundant number, since it is smaller than the sum of its proper divisors (19201647920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11666823744 is an equidigital number, since it uses as much as digits as its factorization.

11666823744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60764722 (or 60764712 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 48.

The spelling of 11666823744 in words is "eleven billion, six hundred sixty-six million, eight hundred twenty-three thousand, seven hundred forty-four".