42600920166 has 120 divisors (see below), whose sum is σ = 112449791520. Its totient is φ = 12017442528.

The previous prime is 42600920123. The next prime is 42600920203. The reversal of 42600920166 is 66102900624.

42600920166 is a `hidden beast` number, since 42 + 600 + 9 + 2 + 0 + 1 + 6 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42600920166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 593136 + ... + 661068.

It is an arithmetic number, because the mean of its divisors is an integer number (937081596).

Almost surely, 2^42600920166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42600920166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56224895760).

42600920166 is an abundant number, since it is smaller than the sum of its proper divisors (69848871354).

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

42600920166 is a wasteful number, since it uses less digits than its factorization.

42600920166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68040 (or 68024 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 42600920166 in words is "forty-two billion, six hundred million, nine hundred twenty thousand, one hundred sixty-six".