111010101099966 has 12 divisors (see below), whose sum is σ = 240521885716632. Its totient is φ = 37003367033316.

The previous prime is 111010101099929. The next prime is 111010101099971. The reversal of 111010101099966 is 669990101010111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3083613919426 + ... + 3083613919461.

It is an arithmetic number, because the mean of its divisors is an integer number (20043490476386).

Almost surely, 2^{111010101099966} is an apocalyptic number.

111010101099966 is an abundant number, since it is smaller than the sum of its proper divisors (129511784616666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111010101099966 is a wasteful number, since it uses less digits than its factorization.

111010101099966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6167227838895 (or 6167227838892 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 45.

The spelling of 111010101099966 in words is "one hundred eleven trillion, ten billion, one hundred one million, ninety-nine thousand, nine hundred sixty-six".