66122404016 has 20 divisors (see below), whose sum is σ = 128116815624. Its totient is φ = 33060000000.

The previous prime is 66122403989. The next prime is 66122404021. The reversal of 66122404016 is 61040422166.

66122404016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523016 + ... + 637016.

Almost surely, 2^66122404016 is an apocalyptic number.

It is an amenable number.

66122404016 is a deficient number, since it is larger than the sum of its proper divisors (61994411608).

66122404016 is a wasteful number, since it uses less digits than its factorization.

66122404016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150260 (or 150254 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 66122404016 in words is "sixty-six billion, one hundred twenty-two million, four hundred four thousand, sixteen".