66044067099 has 8 divisors (see below), whose sum is σ = 89932346880. Its totient is φ = 43092582696.

The previous prime is 66044067059. The next prime is 66044067109. The reversal of 66044067099 is 99076044066.

66044067099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66044067099 - 2⁹ = 66044066587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66044067059) 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, 234198679 + ... + 234198960.

It is an arithmetic number, because the mean of its divisors is an integer number (11241543360).

Almost surely, 2^66044067099 is an apocalyptic number.

66044067099 is a deficient number, since it is larger than the sum of its proper divisors (23888279781).

66044067099 is a wasteful number, since it uses less digits than its factorization.

66044067099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468397689.

The product of its (nonzero) digits is 1959552, while the sum is 51.

The spelling of 66044067099 in words is "sixty-six billion, forty-four million, sixty-seven thousand, ninety-nine".