66536207 has 2 divisors, whose sum is σ = 66536208. Its totient is φ = 66536206.

The previous prime is 66536167. The next prime is 66536221. The reversal of 66536207 is 70263566.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66536207 - 2¹⁶ = 66470671 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 (66536227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33268103 + 33268104.

It is an arithmetic number, because the mean of its divisors is an integer number (33268104).

Almost surely, 2^66536207 is an apocalyptic number.

66536207 is a deficient number, since it is larger than the sum of its proper divisors (1).

66536207 is an equidigital number, since it uses as much as digits as its factorization.

66536207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 66536207 is about 8156.9729066609. The cubic root of 66536207 is about 405.2154663064.

The spelling of 66536207 in words is "sixty-six million, five hundred thirty-six thousand, two hundred seven".