66067541 has 16 divisors (see below), whose sum is σ = 72253440. Its totient is φ = 60179760.

The previous prime is 66067517. The next prime is 66067553. The reversal of 66067541 is 14576066.

66067541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66067541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66067591) 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 15 ways as a sum of consecutive naturals, for example, 131096 + ... + 131598.

It is an arithmetic number, because the mean of its divisors is an integer number (4515840).

Almost surely, 2^66067541 is an apocalyptic number.

It is an amenable number.

66067541 is a deficient number, since it is larger than the sum of its proper divisors (6185899).

66067541 is a wasteful number, since it uses less digits than its factorization.

66067541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 66067541 is about 8128.1942028965. The cubic root of 66067541 is about 404.2618082934.

The spelling of 66067541 in words is "sixty-six million, sixty-seven thousand, five hundred forty-one".