66376724 has 6 divisors (see below), whose sum is σ = 116159274. Its totient is φ = 33188360.

The previous prime is 66376691. The next prime is 66376727. The reversal of 66376724 is 42767366.

66376724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 46485124 + 19891600 = 6818^2 + 4460^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66376727) 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 as a sum of consecutive naturals, namely, 8297087 + ... + 8297094.

It is an arithmetic number, because the mean of its divisors is an integer number (19359879).

Almost surely, 2^66376724 is an apocalyptic number.

It is an amenable number.

66376724 is a deficient number, since it is larger than the sum of its proper divisors (49782550).

66376724 is a wasteful number, since it uses less digits than its factorization.

66376724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16594185 (or 16594183 counting only the distinct ones).

The product of its digits is 254016, while the sum is 41.

The square root of 66376724 is about 8147.1911724226. The cubic root of 66376724 is about 404.8914488330.

The spelling of 66376724 in words is "sixty-six million, three hundred seventy-six thousand, seven hundred twenty-four".