66578483 has 4 divisors (see below), whose sum is σ = 68726208. Its totient is φ = 64430760.

The previous prime is 66578471. The next prime is 66578507. The reversal of 66578483 is 38487566.

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

It is a cyclic number.

It is not a de Polignac number, because 66578483 - 2⁸ = 66578227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66578453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1073816 + ... + 1073877.

It is an arithmetic number, because the mean of its divisors is an integer number (17181552).

Almost surely, 2^66578483 is an apocalyptic number.

66578483 is a deficient number, since it is larger than the sum of its proper divisors (2147725).

66578483 is a wasteful number, since it uses less digits than its factorization.

66578483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147724.

The product of its digits is 967680, while the sum is 47.

The square root of 66578483 is about 8159.5638976602. The cubic root of 66578483 is about 405.3012705268.

The spelling of 66578483 in words is "sixty-six million, five hundred seventy-eight thousand, four hundred eighty-three".