66036499 has 2 divisors, whose sum is σ = 66036500. Its totient is φ = 66036498.

The previous prime is 66036469. The next prime is 66036511. The reversal of 66036499 is 99463066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66036499 - 2¹⁵ = 66003731 is a prime.

It is not a weakly prime, because it can be changed into another prime (66036469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33018249 + 33018250.

It is an arithmetic number, because the mean of its divisors is an integer number (33018250).

Almost surely, 2^66036499 is an apocalyptic number.

66036499 is a deficient number, since it is larger than the sum of its proper divisors (1).

66036499 is an equidigital number, since it uses as much as digits as its factorization.

66036499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 43.

The square root of 66036499 is about 8126.2844523189. The cubic root of 66036499 is about 404.1984838995.

The spelling of 66036499 in words is "sixty-six million, thirty-six thousand, four hundred ninety-nine".