42666290568 has 160 divisors (see below), whose sum is σ = 130477707360. Its totient is φ = 12918424320.

The previous prime is 42666290551. The next prime is 42666290581. The reversal of 42666290568 is 86509266624.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 14446980 + ... + 14449932.

It is an arithmetic number, because the mean of its divisors is an integer number (815485671).

Almost surely, 2^42666290568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42666290568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65238853680).

42666290568 is an abundant number, since it is smaller than the sum of its proper divisors (87811416792).

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

42666290568 is a wasteful number, since it uses less digits than its factorization.

42666290568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5009 (or 4996 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 42666290568 in words is "forty-two billion, six hundred sixty-six million, two hundred ninety thousand, five hundred sixty-eight".