2111504504166 has 12 divisors (see below), whose sum is σ = 4574926425732. Its totient is φ = 703834834716.

The previous prime is 2111504504141. The next prime is 2111504504191. The reversal of 2111504504166 is 6614054051112.

2111504504166 is a `hidden beast` number, since 2 + 1 + 1 + 1 + 504 + 50 + 41 + 66 = 666.

It is an interprime number because it is at equal distance from previous prime (2111504504141) and next prime (2111504504191).

It is a super-2 number, since 2×2111504504166² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2111504504166.

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, 58652902876 + ... + 58652902911.

It is an arithmetic number, because the mean of its divisors is an integer number (381243868811).

Almost surely, 2^{2111504504166} is an apocalyptic number.

2111504504166 is an abundant number, since it is smaller than the sum of its proper divisors (2463421921566).

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

2111504504166 is a wasteful number, since it uses less digits than its factorization.

2111504504166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117305805795 (or 117305805792 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

Adding to 2111504504166 its reverse (6614054051112), we get a palindrome (8725558555278).

The spelling of 2111504504166 in words is "two trillion, one hundred eleven billion, five hundred four million, five hundred four thousand, one hundred sixty-six".