2111761116 has 18 divisors (see below), whose sum is σ = 5338062912. Its totient is φ = 703920360.

The previous prime is 2111761109. The next prime is 2111761139. The reversal of 2111761116 is 6111671112.

2111761116 is a `hidden beast` number, since 21 + 1 + 17 + 611 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×2111761116² = 8919070022099130912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2111761116.

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, 29329980 + ... + 29330051.

Almost surely, 2^2111761116 is an apocalyptic number.

It is an amenable number.

2111761116 is an abundant number, since it is smaller than the sum of its proper divisors (3226301796).

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

2111761116 is a wasteful number, since it uses less digits than its factorization.

2111761116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58660041 (or 58660036 counting only the distinct ones).

The product of its digits is 504, while the sum is 27.

The square root of 2111761116 is about 45953.9020758847. The cubic root of 2111761116 is about 1282.9653571548.

The spelling of 2111761116 in words is "two billion, one hundred eleven million, seven hundred sixty-one thousand, one hundred sixteen".