143666266315663 has 12 divisors (see below), whose sum is σ = 179977520440200. Its totient is φ = 113670012908592.

The previous prime is 143666266315603. The next prime is 143666266315681. The reversal of 143666266315663 is 366513662666341.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-143666266315663 is a prime.

It is a super-3 number, since 3×143666266315663³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143666266315595 and 143666266315604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143666266315603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112767869313 + ... + 112767870586.

It is an arithmetic number, because the mean of its divisors is an integer number (14998126703350).

Almost surely, 2^{143666266315663} is an apocalyptic number.

143666266315663 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

143666266315663 is a deficient number, since it is larger than the sum of its proper divisors (36311254124537).

143666266315663 is a wasteful number, since it uses less digits than its factorization.

143666266315663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225535739926 (or 225535739919 counting only the distinct ones).

The product of its digits is 302330880, while the sum is 64.

The spelling of 143666266315663 in words is "one hundred forty-three trillion, six hundred sixty-six billion, two hundred sixty-six million, three hundred fifteen thousand, six hundred sixty-three".