42606660066 has 16 divisors (see below), whose sum is σ = 85579045344. Its totient is φ = 14141265824.

The previous prime is 42606659993. The next prime is 42606660073. The reversal of 42606660066 is 66006660624.

It is a happy number.

42606660066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15237036 + ... + 15239831.

It is an arithmetic number, because the mean of its divisors is an integer number (5348690334).

Almost surely, 2^42606660066 is an apocalyptic number.

42606660066 is an abundant number, since it is smaller than the sum of its proper divisors (42972385278).

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

42606660066 is a wasteful number, since it uses less digits than its factorization.

42606660066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30477105.

The product of its (nonzero) digits is 373248, while the sum is 42.

The spelling of 42606660066 in words is "forty-two billion, six hundred six million, six hundred sixty thousand, sixty-six".