6722210161 has 4 divisors (see below), whose sum is σ = 7014480192. Its totient is φ = 6429940132.

The previous prime is 6722210141. The next prime is 6722210171. The reversal of 6722210161 is 1610122276.

6722210161 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6722210161 - 2⁵ = 6722210129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6722210141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146134981 + ... + 146135026.

It is an arithmetic number, because the mean of its divisors is an integer number (1753620048).

Almost surely, 2^6722210161 is an apocalyptic number.

It is an amenable number.

6722210161 is a deficient number, since it is larger than the sum of its proper divisors (292270031).

6722210161 is a wasteful number, since it uses less digits than its factorization.

6722210161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292270030.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 6722210161 is about 81989.0856211972. The cubic root of 6722210161 is about 1887.2844516573.

The spelling of 6722210161 in words is "six billion, seven hundred twenty-two million, two hundred ten thousand, one hundred sixty-one".