40707605666 has 16 divisors (see below), whose sum is σ = 75152503104. Its totient is φ = 16104107664.

The previous prime is 40707605633. The next prime is 40707605669. The reversal of 40707605666 is 66650670704.

It is a self number, because there is not a number n which added to its sum of digits gives 40707605666.

It is not an unprimeable number, because it can be changed into a prime (40707605669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111833900 + ... + 111834263.

It is an arithmetic number, because the mean of its divisors is an integer number (4697031444).

Almost surely, 2^40707605666 is an apocalyptic number.

40707605666 is a deficient number, since it is larger than the sum of its proper divisors (34444897438).

40707605666 is a wasteful number, since it uses less digits than its factorization.

40707605666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223668185.

The product of its (nonzero) digits is 1270080, while the sum is 47.

The spelling of 40707605666 in words is "forty billion, seven hundred seven million, six hundred five thousand, six hundred sixty-six".