66330606072 has 32 divisors (see below), whose sum is σ = 166570145280. Its totient is φ = 22011051360.

The previous prime is 66330606037. The next prime is 66330606073. The reversal of 66330606072 is 27060603366.

It is a self number, because there is not a number n which added to its sum of digits gives 66330606072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66330606073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6191454 + ... + 6202157.

It is an arithmetic number, because the mean of its divisors is an integer number (5205317040).

Almost surely, 2^66330606072 is an apocalyptic number.

It is an amenable number.

66330606072 is an abundant number, since it is smaller than the sum of its proper divisors (100239539208).

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

66330606072 is a wasteful number, since it uses less digits than its factorization.

66330606072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12393843 (or 12393839 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 39.

The spelling of 66330606072 in words is "sixty-six billion, three hundred thirty million, six hundred six thousand, seventy-two".