66140110416 has 40 divisors (see below), whose sum is σ = 171542708064. Its totient is φ = 21958864000.

The previous prime is 66140110391. The next prime is 66140110423. The reversal of 66140110416 is 61401104166.

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 7 ways as a sum of consecutive naturals, for example, 2732811 + ... + 2756906.

Almost surely, 2^66140110416 is an apocalyptic number.

It is an amenable number.

66140110416 is an abundant number, since it is smaller than the sum of its proper divisors (105402597648).

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

66140110416 is a wasteful number, since it uses less digits than its factorization.

66140110416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5489979 (or 5489973 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The spelling of 66140110416 in words is "sixty-six billion, one hundred forty million, one hundred ten thousand, four hundred sixteen".