66413588 has 12 divisors (see below), whose sum is σ = 122340960. Its totient is φ = 31459032.

The previous prime is 66413551. The next prime is 66413593. The reversal of 66413588 is 88531466.

66413588 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, 436856 + ... + 437007.

It is an arithmetic number, because the mean of its divisors is an integer number (10195080).

Almost surely, 2^66413588 is an apocalyptic number.

It is an amenable number.

66413588 is a deficient number, since it is larger than the sum of its proper divisors (55927372).

66413588 is a wasteful number, since it uses less digits than its factorization.

66413588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873886 (or 873884 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 66413588 is about 8149.4532331930. The cubic root of 66413588 is about 404.9663905453.

The spelling of 66413588 in words is "sixty-six million, four hundred thirteen thousand, five hundred eighty-eight".