2172066013 has 16 divisors (see below), whose sum is σ = 2490626880. Its totient is φ = 1876467456.

The previous prime is 2172066011. The next prime is 2172066031. The reversal of 2172066013 is 3106602712.

2172066013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2172066013 - 2¹ = 2172066011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172066011) 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, 12106 + ... + 67012.

It is an arithmetic number, because the mean of its divisors is an integer number (155664180).

Almost surely, 2^2172066013 is an apocalyptic number.

It is an amenable number.

2172066013 is a deficient number, since it is larger than the sum of its proper divisors (318560867).

2172066013 is a wasteful number, since it uses less digits than its factorization.

2172066013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55116.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 2172066013 is about 46605.4290077884. The cubic root of 2172066013 is about 1295.0633308821.

Adding to 2172066013 its reverse (3106602712), we get a palindrome (5278668725).

The spelling of 2172066013 in words is "two billion, one hundred seventy-two million, sixty-six thousand, thirteen".