42245589666 has 32 divisors (see below), whose sum is σ = 96902581248. Its totient is φ = 12027514320.

The previous prime is 42245589649. The next prime is 42245589703. The reversal of 42245589666 is 66698554224.

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, 1765230 + ... + 1789001.

It is an arithmetic number, because the mean of its divisors is an integer number (3028205664).

Almost surely, 2^42245589666 is an apocalyptic number.

42245589666 is an abundant number, since it is smaller than the sum of its proper divisors (54656991582).

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

42245589666 is a wasteful number, since it uses less digits than its factorization.

42245589666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3554526.

The product of its digits is 24883200, while the sum is 57.

The spelling of 42245589666 in words is "forty-two billion, two hundred forty-five million, five hundred eighty-nine thousand, six hundred sixty-six".