66058637507 has 2 divisors, whose sum is σ = 66058637508. Its totient is φ = 66058637506.

The previous prime is 66058637443. The next prime is 66058637527. The reversal of 66058637507 is 70573685066.

It is a happy number.

66058637507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66058637507 - 2⁶ = 66058637443 is a prime.

It is not a weakly prime, because it can be changed into another prime (66058637527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33029318753 + 33029318754.

It is an arithmetic number, because the mean of its divisors is an integer number (33029318754).

Almost surely, 2^66058637507 is an apocalyptic number.

66058637507 is a deficient number, since it is larger than the sum of its proper divisors (1).

66058637507 is an equidigital number, since it uses as much as digits as its factorization.

66058637507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6350400, while the sum is 53.

The spelling of 66058637507 in words is "sixty-six billion, fifty-eight million, six hundred thirty-seven thousand, five hundred seven".