143666311362446 has 16 divisors (see below), whose sum is σ = 216347766255360. Its totient is φ = 71550581706240.

The previous prime is 143666311362443. The next prime is 143666311362493. The reversal of 143666311362446 is 644263113666341.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 143666311362391 and 143666311362400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143666311362443) 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, 46612526 + ... + 49598993.

It is an arithmetic number, because the mean of its divisors is an integer number (13521735390960).

Almost surely, 2^{143666311362446} is an apocalyptic number.

143666311362446 is a deficient number, since it is larger than the sum of its proper divisors (72681454892914).

143666311362446 is a wasteful number, since it uses less digits than its factorization.

143666311362446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96214459.

The product of its digits is 26873856, while the sum is 56.

The spelling of 143666311362446 in words is "one hundred forty-three trillion, six hundred sixty-six billion, three hundred eleven million, three hundred sixty-two thousand, four hundred forty-six".