100001111099966 has 32 divisors (see below), whose sum is σ = 160271832472992. Its totient is φ = 46631975848960.

The previous prime is 100001111099941. The next prime is 100001111100029. The reversal of 100001111099966 is 669990111100001.

It is a happy number.

It is a congruent number.

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, 16677200 + ... + 21866211.

It is an arithmetic number, because the mean of its divisors is an integer number (5008494764781).

Almost surely, 2^{100001111099966} is an apocalyptic number.

100001111099966 is a deficient number, since it is larger than the sum of its proper divisors (60270721373026).

100001111099966 is a wasteful number, since it uses less digits than its factorization.

100001111099966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38544124.

The product of its (nonzero) digits is 26244, while the sum is 44.

Adding to 100001111099966 its reverse (669990111100001), we get a palindrome (769991222199967).

The spelling of 100001111099966 in words is "one hundred trillion, one billion, one hundred eleven million, ninety-nine thousand, nine hundred sixty-six".