143666321165416 has 32 divisors (see below), whose sum is σ = 309699854029440. Its totient is φ = 61202590193088.

The previous prime is 143666321165413. The next prime is 143666321165449. The reversal of 143666321165416 is 614561123666341.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (143666321165413) 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, 7681038615 + ... + 7681057318.

It is an arithmetic number, because the mean of its divisors is an integer number (9678120438420).

Almost surely, 2^{143666321165416} is an apocalyptic number.

It is an amenable number.

143666321165416 is an abundant number, since it is smaller than the sum of its proper divisors (166033532864024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143666321165416 is a wasteful number, since it uses less digits than its factorization.

143666321165416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15362096113 (or 15362096109 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 55.

The spelling of 143666321165416 in words is "one hundred forty-three trillion, six hundred sixty-six billion, three hundred twenty-one million, one hundred sixty-five thousand, four hundred sixteen".