66058541 has 2 divisors, whose sum is σ = 66058542. Its totient is φ = 66058540.

The previous prime is 66058537. The next prime is 66058567. The reversal of 66058541 is 14585066.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37393225 + 28665316 = 6115^2 + 5354^2 .

It is a cyclic number.

It is not a de Polignac number, because 66058541 - 2² = 66058537 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66058571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33029270 + 33029271.

It is an arithmetic number, because the mean of its divisors is an integer number (33029271).

Almost surely, 2^66058541 is an apocalyptic number.

It is an amenable number.

66058541 is a deficient number, since it is larger than the sum of its proper divisors (1).

66058541 is an equidigital number, since it uses as much as digits as its factorization.

66058541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 66058541 is about 8127.6405555364. The cubic root of 66058541 is about 404.2434507084.

The spelling of 66058541 in words is "sixty-six million, fifty-eight thousand, five hundred forty-one".