42566421606 has 32 divisors (see below), whose sum is σ = 85403566080. Its totient is φ = 14143730304.

The previous prime is 42566421581. The next prime is 42566421613. The reversal of 42566421606 is 60612466524.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5141086 + ... + 5149358.

It is an arithmetic number, because the mean of its divisors is an integer number (2668861440).

Almost surely, 2^42566421606 is an apocalyptic number.

42566421606 is an abundant number, since it is smaller than the sum of its proper divisors (42837144474).

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

42566421606 is a wasteful number, since it uses less digits than its factorization.

42566421606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10900.

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 42566421606 in words is "forty-two billion, five hundred sixty-six million, four hundred twenty-one thousand, six hundred six".