2166016111 has 16 divisors (see below), whose sum is σ = 2504174400. Its totient is φ = 1835089920.

The previous prime is 2166016109. The next prime is 2166016157. The reversal of 2166016111 is 1116106612.

It is a cyclic number.

It is not a de Polignac number, because 2166016111 - 2¹ = 2166016109 is a prime.

It is a super-2 number, since 2×2166016111² = 9383251586223128642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166016211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 710751 + ... + 713791.

It is an arithmetic number, because the mean of its divisors is an integer number (156510900).

Almost surely, 2^2166016111 is an apocalyptic number.

2166016111 is a deficient number, since it is larger than the sum of its proper divisors (338158289).

2166016111 is a wasteful number, since it uses less digits than its factorization.

2166016111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4194.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 2166016111 is about 46540.4781990903. The cubic root of 2166016111 is about 1293.8598235911.

The spelling of 2166016111 in words is "two billion, one hundred sixty-six million, sixteen thousand, one hundred eleven".