66483845 has 4 divisors (see below), whose sum is σ = 79780620. Its totient is φ = 53187072.

The previous prime is 66483841. The next prime is 66483847. The reversal of 66483845 is 54838466.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18472804 + 48011041 = 4298^2 + 6929^2 .

It is a cyclic number.

It is not a de Polignac number, because 66483845 - 2² = 66483841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66483796 and 66483805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66483841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6648380 + ... + 6648389.

It is an arithmetic number, because the mean of its divisors is an integer number (19945155).

Almost surely, 2^66483845 is an apocalyptic number.

It is an amenable number.

66483845 is a deficient number, since it is larger than the sum of its proper divisors (13296775).

66483845 is a wasteful number, since it uses less digits than its factorization.

66483845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13296774.

The product of its digits is 552960, while the sum is 44.

The square root of 66483845 is about 8153.7626283821. The cubic root of 66483845 is about 405.1091409357.

The spelling of 66483845 in words is "sixty-six million, four hundred eighty-three thousand, eight hundred forty-five".