66463143 has 8 divisors (see below), whose sum is σ = 89015808. Its totient is φ = 44109624.

The previous prime is 66463141. The next prime is 66463207. The reversal of 66463143 is 34136466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66463143 - 2¹ = 66463141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66463141) 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, 49005 + ... + 50342.

It is an arithmetic number, because the mean of its divisors is an integer number (11126976).

Almost surely, 2^66463143 is an apocalyptic number.

66463143 is a deficient number, since it is larger than the sum of its proper divisors (22552665).

66463143 is a wasteful number, since it uses less digits than its factorization.

66463143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99573.

The product of its digits is 31104, while the sum is 33.

The square root of 66463143 is about 8152.4930542749. The cubic root of 66463143 is about 405.0670884137.

The spelling of 66463143 in words is "sixty-six million, four hundred sixty-three thousand, one hundred forty-three".