10001111099966 has 16 divisors (see below), whose sum is σ = 17145035618400. Its totient is φ = 4286122038240.

The previous prime is 10001111099953. The next prime is 10001111099983. The reversal of 10001111099966 is 66999011110001.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 4789541 + ... + 6553008.

It is an arithmetic number, because the mean of its divisors is an integer number (1071564726150).

Almost surely, 2^{10001111099966} is an apocalyptic number.

10001111099966 is a deficient number, since it is larger than the sum of its proper divisors (7143924518434).

10001111099966 is a wasteful number, since it uses less digits than its factorization.

10001111099966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11405539.

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

The spelling of 10001111099966 in words is "ten trillion, one billion, one hundred eleven million, ninety-nine thousand, nine hundred sixty-six".