6640351122 has 32 divisors (see below), whose sum is σ = 13502878272. Its totient is φ = 2176602624.

The previous prime is 6640351117. The next prime is 6640351171. The reversal of 6640351122 is 2211530466.

It is a self number, because there is not a number n which added to its sum of digits gives 6640351122.

It is an unprimeable number.

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, 125113 + ... + 170099.

It is an arithmetic number, because the mean of its divisors is an integer number (421964946).

Almost surely, 2^6640351122 is an apocalyptic number.

6640351122 is an abundant number, since it is smaller than the sum of its proper divisors (6862527150).

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

6640351122 is a wasteful number, since it uses less digits than its factorization.

6640351122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45402.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 6640351122 is about 81488.3496090085. The cubic root of 6640351122 is about 1879.5924046582.

Adding to 6640351122 its reverse (2211530466), we get a palindrome (8851881588).

The spelling of 6640351122 in words is "six billion, six hundred forty million, three hundred fifty-one thousand, one hundred twenty-two".