143666463212645 has 16 divisors (see below), whose sum is σ = 173982493985520. Its totient is φ = 113878025017344.

The previous prime is 143666463212599. The next prime is 143666463212731. The reversal of 143666463212645 is 546212364666341.

It can be written as a sum of positive squares in 8 ways, for example, as 7465752916609 + 136200710296036 = 2732353^2 + 11670506^2 .

It is a cyclic number.

It is not a de Polignac number, because 143666463212645 - 2¹² = 143666463208549 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96946607 + ... + 98417363.

It is an arithmetic number, because the mean of its divisors is an integer number (10873905874095).

Almost surely, 2^{143666463212645} is an apocalyptic number.

It is an amenable number.

143666463212645 is a deficient number, since it is larger than the sum of its proper divisors (30316030772875).

143666463212645 is a wasteful number, since it uses less digits than its factorization.

143666463212645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650104.

The product of its digits is 89579520, while the sum is 59.

The spelling of 143666463212645 in words is "one hundred forty-three trillion, six hundred sixty-six billion, four hundred sixty-three million, two hundred twelve thousand, six hundred forty-five".