66029696218 has 16 divisors (see below), whose sum is σ = 100549514304. Its totient is φ = 32513453280.

The previous prime is 66029696179. The next prime is 66029696237. The reversal of 66029696218 is 81269692066.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456571 + ... + 583537.

It is an arithmetic number, because the mean of its divisors is an integer number (6284344644).

Almost surely, 2^66029696218 is an apocalyptic number.

66029696218 is a deficient number, since it is larger than the sum of its proper divisors (34519818086).

66029696218 is a wasteful number, since it uses less digits than its factorization.

66029696218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130917.

The product of its (nonzero) digits is 3359232, while the sum is 55.

The spelling of 66029696218 in words is "sixty-six billion, twenty-nine million, six hundred ninety-six thousand, two hundred eighteen".