66088507 has 2 divisors, whose sum is σ = 66088508. Its totient is φ = 66088506.

The previous prime is 66088493. The next prime is 66088511. The reversal of 66088507 is 70588066.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66088507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66088507.

It is not a weakly prime, because it can be changed into another prime (66088577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33044253 + 33044254.

It is an arithmetic number, because the mean of its divisors is an integer number (33044254).

Almost surely, 2^66088507 is an apocalyptic number.

66088507 is a deficient number, since it is larger than the sum of its proper divisors (1).

66088507 is an equidigital number, since it uses as much as digits as its factorization.

66088507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 66088507 is about 8129.4838089512. The cubic root of 66088507 is about 404.3045668428.

The spelling of 66088507 in words is "sixty-six million, eighty-eight thousand, five hundred seven".