66000000099 has 64 divisors (see below), whose sum is σ = 102609980928. Its totient is φ = 37292236800.

The previous prime is 66000000067. The next prime is 66000000107. The reversal of 66000000099 is 99000000066.

It is not a de Polignac number, because 66000000099 - 2⁵ = 66000000067 is a prime.

66000000099 is a strobogrammatic number because it is the same when read upside-down.

66000000099 is a modest number, since divided by 99 gives 66 as remainder.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (66000000049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27579247 + ... + 27581639.

It is an arithmetic number, because the mean of its divisors is an integer number (1603280952).

Almost surely, 2^66000000099 is an apocalyptic number.

66000000099 is a deficient number, since it is larger than the sum of its proper divisors (36609980829).

66000000099 is a wasteful number, since it uses less digits than its factorization.

66000000099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868.

The product of its (nonzero) digits is 2916, while the sum is 30.

The spelling of 66000000099 in words is "sixty-six billion, ninety-nine", and thus it is an aban number and an uban number.