66397024 has 24 divisors (see below), whose sum is σ = 130977000. Its totient is φ = 33133056.

The previous prime is 66396989. The next prime is 66397033. The reversal of 66397024 is 42079366.

66397024 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, 17227 + ... + 20725.

It is an arithmetic number, because the mean of its divisors is an integer number (5457375).

Almost surely, 2^66397024 is an apocalyptic number.

It is an amenable number.

66397024 is a deficient number, since it is larger than the sum of its proper divisors (64579976).

66397024 is a wasteful number, since it uses less digits than its factorization.

66397024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4102 (or 4094 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 66397024 is about 8148.4369053212. The cubic root of 66397024 is about 404.9327206231.

The spelling of 66397024 in words is "sixty-six million, three hundred ninety-seven thousand, twenty-four".