6651337836 has 96 divisors (see below), whose sum is σ = 18256750848. Its totient is φ = 1858095360.

The previous prime is 6651337831. The next prime is 6651337879. The reversal of 6651337836 is 6387331566.

It is not an unprimeable number, because it can be changed into a prime (6651337831) 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 31 ways as a sum of consecutive naturals, for example, 1623006 + ... + 1627098.

It is an arithmetic number, because the mean of its divisors is an integer number (190174488).

Almost surely, 2^6651337836 is an apocalyptic number.

6651337836 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6651337836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9128375424).

6651337836 is an abundant number, since it is smaller than the sum of its proper divisors (11605413012).

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

6651337836 is a wasteful number, since it uses less digits than its factorization.

6651337836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5071 (or 5069 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 48.

The square root of 6651337836 is about 81555.7345377994. The cubic root of 6651337836 is about 1880.6284525633.

The spelling of 6651337836 in words is "six billion, six hundred fifty-one million, three hundred thirty-seven thousand, eight hundred thirty-six".