42183810666 has 80 divisors (see below), whose sum is σ = 97639914240. Its totient is φ = 13598228160.

The previous prime is 42183810649. The next prime is 42183810677. The reversal of 42183810666 is 66601838124.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12950110 + ... + 12953366.

It is an arithmetic number, because the mean of its divisors is an integer number (1220498928).

Almost surely, 2^42183810666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42183810666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48819957120).

42183810666 is an abundant number, since it is smaller than the sum of its proper divisors (55456103574).

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

42183810666 is a wasteful number, since it uses less digits than its factorization.

42183810666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5881 (or 5872 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 42183810666 in words is "forty-two billion, one hundred eighty-three million, eight hundred ten thousand, six hundred sixty-six".