66110110616 has 16 divisors (see below), whose sum is σ = 135225226440. Its totient is φ = 30050050240.

The previous prime is 66110110609. The next prime is 66110110621. The reversal of 66110110616 is 61601101166.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 375625541 + ... + 375625716.

Almost surely, 2^66110110616 is an apocalyptic number.

It is an amenable number.

66110110616 is an abundant number, since it is smaller than the sum of its proper divisors (69115115824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66110110616 is a wasteful number, since it uses less digits than its factorization.

66110110616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751251274 (or 751251270 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 66110110616 in words is "sixty-six billion, one hundred ten million, one hundred ten thousand, six hundred sixteen".