6722156064 has 192 divisors, whose sum is σ = 19725189120. Its totient is φ = 1990517760.

The previous prime is 6722156003. The next prime is 6722156071. The reversal of 6722156064 is 4606512276.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9246069 + ... + 9246795.

It is an arithmetic number, because the mean of its divisors is an integer number (102735360).

Almost surely, 2^6722156064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6722156064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9862594560).

6722156064 is an abundant number, since it is smaller than the sum of its proper divisors (13003033056).

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

6722156064 is a wasteful number, since it uses less digits than its factorization.

6722156064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023 (or 1015 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 6722156064 is about 81988.7557168664. The cubic root of 6722156064 is about 1887.2793890019.

The spelling of 6722156064 in words is "six billion, seven hundred twenty-two million, one hundred fifty-six thousand, sixty-four".