2156918182 has 8 divisors (see below), whose sum is σ = 3322820016. Its totient is φ = 1049311512.

The previous prime is 2156918161. The next prime is 2156918191. The reversal of 2156918182 is 2818196512.

2156918182 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14573698 + ... + 14573845.

It is an arithmetic number, because the mean of its divisors is an integer number (415352502).

Almost surely, 2^2156918182 is an apocalyptic number.

2156918182 is a deficient number, since it is larger than the sum of its proper divisors (1165901834).

2156918182 is a wasteful number, since it uses less digits than its factorization.

2156918182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29147582.

The product of its digits is 69120, while the sum is 43.

The square root of 2156918182 is about 46442.6332371454. The cubic root of 2156918182 is about 1292.0457458873.

The spelling of 2156918182 in words is "two billion, one hundred fifty-six million, nine hundred eighteen thousand, one hundred eighty-two".