143666311356613 has 16 divisors (see below), whose sum is σ = 150132544128000. Its totient is φ = 137218535625600.

The previous prime is 143666311356611. The next prime is 143666311356643. The reversal of 143666311356613 is 316653113666341.

It is a cyclic number.

It is not a de Polignac number, because 143666311356613 - 2¹ = 143666311356611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143666311356611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45545743 + ... + 48597811.

It is an arithmetic number, because the mean of its divisors is an integer number (9383284008000).

Almost surely, 2^{143666311356613} is an apocalyptic number.

It is an amenable number.

143666311356613 is a deficient number, since it is larger than the sum of its proper divisors (6466232771387).

143666311356613 is a wasteful number, since it uses less digits than its factorization.

143666311356613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055092.

The product of its digits is 12597120, while the sum is 55.

The spelling of 143666311356613 in words is "one hundred forty-three trillion, six hundred sixty-six billion, three hundred eleven million, three hundred fifty-six thousand, six hundred thirteen".