2166340012 has 6 divisors (see below), whose sum is σ = 3791095028. Its totient is φ = 1083170004.

The previous prime is 2166340003. The next prime is 2166340013. The reversal of 2166340012 is 2100436612.

2166340012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2166340013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270792498 + ... + 270792505.

Almost surely, 2^2166340012 is an apocalyptic number.

It is an amenable number.

2166340012 is a deficient number, since it is larger than the sum of its proper divisors (1624755016).

2166340012 is a wasteful number, since it uses less digits than its factorization.

2166340012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541585007 (or 541585005 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2166340012 is about 46543.9578463199. The cubic root of 2166340012 is about 1293.9243139706.

Adding to 2166340012 its reverse (2100436612), we get a palindrome (4266776624).

The spelling of 2166340012 in words is "two billion, one hundred sixty-six million, three hundred forty thousand, twelve".