2166071156 has 24 divisors (see below), whose sum is σ = 3814050240. Its totient is φ = 1076363072.

The previous prime is 2166071137. The next prime is 2166071177. The reversal of 2166071156 is 6511706612.

2166071156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489080 + ... + 493488.

It is an arithmetic number, because the mean of its divisors is an integer number (158918760).

Almost surely, 2^2166071156 is an apocalyptic number.

It is an amenable number.

2166071156 is a deficient number, since it is larger than the sum of its proper divisors (1647979084).

2166071156 is a wasteful number, since it uses less digits than its factorization.

2166071156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5143 (or 5141 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 2166071156 is about 46541.0695622694. The cubic root of 2166071156 is about 1293.8707837913.

Adding to 2166071156 its reverse (6511706612), we get a palindrome (8677777768).

The spelling of 2166071156 in words is "two billion, one hundred sixty-six million, seventy-one thousand, one hundred fifty-six".