66734499 has 16 divisors (see below), whose sum is σ = 95999904. Its totient is φ = 40992000.

The previous prime is 66734497. The next prime is 66734609. The reversal of 66734499 is 99443766.

It is not a de Polignac number, because 66734499 - 2¹ = 66734497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66734497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26119 + ... + 28559.

It is an arithmetic number, because the mean of its divisors is an integer number (5999994).

Almost surely, 2^66734499 is an apocalyptic number.

66734499 is a deficient number, since it is larger than the sum of its proper divisors (29265405).

66734499 is a wasteful number, since it uses less digits than its factorization.

66734499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3158.

The product of its digits is 979776, while the sum is 48.

The square root of 66734499 is about 8169.1186183088. The cubic root of 66734499 is about 405.6176097397.

The spelling of 66734499 in words is "sixty-six million, seven hundred thirty-four thousand, four hundred ninety-nine".