66760724 has 24 divisors (see below), whose sum is σ = 118819008. Its totient is φ = 32817600.

The previous prime is 66760723. The next prime is 66760741. The reversal of 66760724 is 42706766.

It is a happy number.

66760724 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 not an unprimeable number, because it can be changed into a prime (66760721) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 64112 + ... + 65144.

It is an arithmetic number, because the mean of its divisors is an integer number (4950792).

Almost surely, 2^66760724 is an apocalyptic number.

It is an amenable number.

66760724 is a deficient number, since it is larger than the sum of its proper divisors (52058284).

66760724 is a wasteful number, since it uses less digits than its factorization.

66760724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295 (or 1293 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 66760724 is about 8170.7235909679. The cubic root of 66760724 is about 405.6707353288.

The spelling of 66760724 in words is "sixty-six million, seven hundred sixty thousand, seven hundred twenty-four".