66452443 has 8 divisors (see below), whose sum is σ = 70062800. Its totient is φ = 62853408.

The previous prime is 66452429. The next prime is 66452459. The reversal of 66452443 is 34425466.

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

It is a cyclic number.

It is not a de Polignac number, because 66452443 - 2²⁵ = 32898011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66452399 and 66452408.

It is not an unprimeable number, because it can be changed into a prime (66452423) 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, 11005 + ... + 15937.

It is an arithmetic number, because the mean of its divisors is an integer number (8757850).

Almost surely, 2^66452443 is an apocalyptic number.

66452443 is a deficient number, since it is larger than the sum of its proper divisors (3610357).

66452443 is a wasteful number, since it uses less digits than its factorization.

66452443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5661.

The product of its digits is 69120, while the sum is 34.

The square root of 66452443 is about 8151.8367868843. The cubic root of 66452443 is about 405.0453497965.

The spelling of 66452443 in words is "sixty-six million, four hundred fifty-two thousand, four hundred forty-three".