6722156441 has 16 divisors (see below), whose sum is σ = 9025554048. Its totient is φ = 4835116800.

The previous prime is 6722156429. The next prime is 6722156447. The reversal of 6722156441 is 1446512276.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6722156441 - 2¹⁰ = 6722155417 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6722156395 and 6722156404.

It is not an unprimeable number, because it can be changed into a prime (6722156447) 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 15 ways as a sum of consecutive naturals, for example, 3356720 + ... + 3358721.

It is an arithmetic number, because the mean of its divisors is an integer number (564097128).

Almost surely, 2^6722156441 is an apocalyptic number.

It is an amenable number.

6722156441 is a deficient number, since it is larger than the sum of its proper divisors (2303397607).

6722156441 is a wasteful number, since it uses less digits than its factorization.

6722156441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6715472.

The product of its digits is 80640, while the sum is 38.

The square root of 6722156441 is about 81988.7580159622. The cubic root of 6722156441 is about 1887.2794242834.

The spelling of 6722156441 in words is "six billion, seven hundred twenty-two million, one hundred fifty-six thousand, four hundred forty-one".