66342424 has 8 divisors (see below), whose sum is σ = 124392060. Its totient is φ = 33171208.

The previous prime is 66342407. The next prime is 66342431. The reversal of 66342424 is 42424366.

66342424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4146394 + ... + 4146409.

Almost surely, 2^66342424 is an apocalyptic number.

It is an amenable number.

66342424 is a deficient number, since it is larger than the sum of its proper divisors (58049636).

66342424 is a wasteful number, since it uses less digits than its factorization.

66342424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8292809 (or 8292805 counting only the distinct ones).

The product of its digits is 27648, while the sum is 31.

The square root of 66342424 is about 8145.0858804558. The cubic root of 66342424 is about 404.8216946144.

It can be divided in two parts, 66342 and 424, that added together give a palindrome (66766).

The spelling of 66342424 in words is "sixty-six million, three hundred forty-two thousand, four hundred twenty-four".