66242588 has 12 divisors (see below), whose sum is σ = 122025960. Its totient is φ = 31378032.

The previous prime is 66242563. The next prime is 66242597. The reversal of 66242588 is 88524266.

66242588 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 in 3 ways as a sum of consecutive naturals, for example, 435731 + ... + 435882.

It is an arithmetic number, because the mean of its divisors is an integer number (10168830).

Almost surely, 2^66242588 is an apocalyptic number.

It is an amenable number.

66242588 is a deficient number, since it is larger than the sum of its proper divisors (55783372).

66242588 is a wasteful number, since it uses less digits than its factorization.

66242588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871636 (or 871634 counting only the distinct ones).

The product of its digits is 184320, while the sum is 41.

The square root of 66242588 is about 8138.9549697735. The cubic root of 66242588 is about 404.6185261310.

It can be divided in two parts, 6624258 and 8, that added together give a palindrome (6624266).

The spelling of 66242588 in words is "sixty-six million, two hundred forty-two thousand, five hundred eighty-eight".