66433479 has 8 divisors (see below), whose sum is σ = 101232000. Its totient is φ = 37961976.

The previous prime is 66433459. The next prime is 66433511. The reversal of 66433479 is 97433466.

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

It is not a de Polignac number, because 66433479 - 2⁵ = 66433447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66433479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66433459) 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 7 ways as a sum of consecutive naturals, for example, 1581729 + ... + 1581770.

It is an arithmetic number, because the mean of its divisors is an integer number (12654000).

Almost surely, 2^66433479 is an apocalyptic number.

66433479 is a deficient number, since it is larger than the sum of its proper divisors (34798521).

66433479 is a wasteful number, since it uses less digits than its factorization.

66433479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3163509.

The product of its digits is 326592, while the sum is 42.

The square root of 66433479 is about 8150.6735304513. The cubic root of 66433479 is about 405.0068159194.

It can be divided in two parts, 664 and 33479, that added together give a palindrome (34143).

The spelling of 66433479 in words is "sixty-six million, four hundred thirty-three thousand, four hundred seventy-nine".