11666823343 has 8 divisors (see below), whose sum is σ = 13334169600. Its totient is φ = 9999641400.

The previous prime is 11666823331. The next prime is 11666823353. The reversal of 11666823343 is 34332866611.

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

It is not a de Polignac number, because 11666823343 - 2¹³ = 11666815151 is a prime.

It is a super-2 number, since 2×11666823343² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11666823343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11666823353) 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, 233058 + ... + 278656.

It is an arithmetic number, because the mean of its divisors is an integer number (1666771200).

Almost surely, 2^11666823343 is an apocalyptic number.

11666823343 is a deficient number, since it is larger than the sum of its proper divisors (1667346257).

11666823343 is an equidigital number, since it uses as much as digits as its factorization.

11666823343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82157.

The product of its digits is 373248, while the sum is 43.

The spelling of 11666823343 in words is "eleven billion, six hundred sixty-six million, eight hundred twenty-three thousand, three hundred forty-three".