66829127908 has 24 divisors (see below), whose sum is σ = 117475231104. Its totient is φ = 33264972000.

The previous prime is 66829127891. The next prime is 66829127909. The reversal of 66829127908 is 80972192866.

It is a super-2 number, since 2×66829127908² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66829127909) 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 7 ways as a sum of consecutive naturals, for example, 1386591 + ... + 1433977.

It is an arithmetic number, because the mean of its divisors is an integer number (4894801296).

Almost surely, 2^66829127908 is an apocalyptic number.

It is an amenable number.

66829127908 is a deficient number, since it is larger than the sum of its proper divisors (50646103196).

66829127908 is a wasteful number, since it uses less digits than its factorization.

66829127908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48963 (or 48961 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 58.

The spelling of 66829127908 in words is "sixty-six billion, eight hundred twenty-nine million, one hundred twenty-seven thousand, nine hundred eight".