2156314241166 has 16 divisors (see below), whose sum is σ = 4326495458688. Its totient is φ = 716460251000.

The previous prime is 2156314241119. The next prime is 2156314241167. The reversal of 2156314241166 is 6611424136512.

It is a super-2 number, since 2×2156314241166² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156314241167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 577788660 + ... + 577792391.

It is an arithmetic number, because the mean of its divisors is an integer number (270405966168).

Almost surely, 2^{2156314241166} is an apocalyptic number.

2156314241166 is an abundant number, since it is smaller than the sum of its proper divisors (2170181217522).

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

2156314241166 is a wasteful number, since it uses less digits than its factorization.

2156314241166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155581367.

The product of its digits is 207360, while the sum is 42.

Adding to 2156314241166 its reverse (6611424136512), we get a palindrome (8767738377678).

The spelling of 2156314241166 in words is "two trillion, one hundred fifty-six billion, three hundred fourteen million, two hundred forty-one thousand, one hundred sixty-six".