6651349722 has 256 divisors, whose sum is σ = 17244057600. Its totient is φ = 1886976000.

The previous prime is 6651349721. The next prime is 6651349777. The reversal of 6651349722 is 2279431566.

6651349722 is a `hidden beast` number, since 66 + 513 + 4 + 9 + 72 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (6651349721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 50773597 + ... + 50773727.

It is an arithmetic number, because the mean of its divisors is an integer number (67359600).

Almost surely, 2^6651349722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6651349722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8622028800).

6651349722 is an abundant number, since it is smaller than the sum of its proper divisors (10592707878).

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

6651349722 is a wasteful number, since it uses less digits than its factorization.

6651349722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 284 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 6651349722 is about 81555.8074081791. The cubic root of 6651349722 is about 1880.6295727959.

The spelling of 6651349722 in words is "six billion, six hundred fifty-one million, three hundred forty-nine thousand, seven hundred twenty-two".