10140044555666 has 32 divisors (see below), whose sum is σ = 15360762689280. Its totient is φ = 5020091698176.

The previous prime is 10140044555647. The next prime is 10140044555677. The reversal of 10140044555666 is 66655544004101.

It is a self number, because there is not a number n which added to its sum of digits gives 10140044555666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72035645 + ... + 72176271.

It is an arithmetic number, because the mean of its divisors is an integer number (480023834040).

Almost surely, 2^{10140044555666} is an apocalyptic number.

10140044555666 is a deficient number, since it is larger than the sum of its proper divisors (5220718133614).

10140044555666 is a wasteful number, since it uses less digits than its factorization.

10140044555666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141698.

The product of its (nonzero) digits is 1728000, while the sum is 47.

Adding to 10140044555666 its reverse (66655544004101), we get a palindrome (76795588559767).

The spelling of 10140044555666 in words is "ten trillion, one hundred forty billion, forty-four million, five hundred fifty-five thousand, six hundred sixty-six".