66008880099 has 8 divisors (see below), whose sum is σ = 97790933520. Its totient is φ = 44005920048.

The previous prime is 66008880097. The next prime is 66008880109. The reversal of 66008880099 is 99008880066.

It is not a de Polignac number, because 66008880099 - 2¹ = 66008880097 is a prime.

66008880099 is a strobogrammatic number because it is the same when read upside-down.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (66008880097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1222386642 + ... + 1222386695.

It is an arithmetic number, because the mean of its divisors is an integer number (12223866690).

Almost surely, 2^66008880099 is an apocalyptic number.

66008880099 is a deficient number, since it is larger than the sum of its proper divisors (31782053421).

66008880099 is a wasteful number, since it uses less digits than its factorization.

66008880099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444773346 (or 2444773340 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 66008880099 in words is "sixty-six billion, eight million, eight hundred eighty thousand, ninety-nine".