42666000806 has 64 divisors (see below), whose sum is σ = 77362689600. Its totient is φ = 17387827200.

The previous prime is 42666000781. The next prime is 42666000821. The reversal of 42666000806 is 60800066624.

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 42666000806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2677310 + ... + 2693198.

It is an arithmetic number, because the mean of its divisors is an integer number (1208792025).

Almost surely, 2^42666000806 is an apocalyptic number.

It is a pronic number, being equal to 206557×206558.

42666000806 is a deficient number, since it is larger than the sum of its proper divisors (34696688794).

42666000806 is a wasteful number, since it uses less digits than its factorization.

42666000806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16185.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 42666000806 in words is "forty-two billion, six hundred sixty-six million, eight hundred six", and thus it is an aban number.