66372741 has 6 divisors (see below), whose sum is σ = 95871750. Its totient is φ = 44248488.

The previous prime is 66372731. The next prime is 66372749. The reversal of 66372741 is 14727366.

66372741 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., 65270241 + 1102500 = 8079^2 + 1050^2 .

It is not a de Polignac number, because 66372741 - 2¹⁰ = 66371717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66372696 and 66372705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66372749) 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 5 ways as a sum of consecutive naturals, for example, 3687366 + ... + 3687383.

It is an arithmetic number, because the mean of its divisors is an integer number (15978625).

Almost surely, 2^66372741 is an apocalyptic number.

It is an amenable number.

66372741 is a deficient number, since it is larger than the sum of its proper divisors (29499009).

66372741 is a wasteful number, since it uses less digits than its factorization.

66372741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7374755 (or 7374752 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 66372741 is about 8146.9467286831. The cubic root of 66372741 is about 404.8833500357.

The spelling of 66372741 in words is "sixty-six million, three hundred seventy-two thousand, seven hundred forty-one".