6650322780 has 48 divisors (see below), whose sum is σ = 18805286304. Its totient is φ = 1755859200.

The previous prime is 6650322773. The next prime is 6650322797. The reversal of 6650322780 is 872230566.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 542647 + ... + 554766.

It is an arithmetic number, because the mean of its divisors is an integer number (391776798).

Almost surely, 2^6650322780 is an apocalyptic number.

6650322780 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6650322780 is an abundant number, since it is smaller than the sum of its proper divisors (12154963524).

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

6650322780 is a wasteful number, since it uses less digits than its factorization.

6650322780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097526 (or 1097524 counting only the distinct ones).

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

The square root of 6650322780 is about 81549.5112186456. The cubic root of 6650322780 is about 1880.5327805668.

The spelling of 6650322780 in words is "six billion, six hundred fifty million, three hundred twenty-two thousand, seven hundred eighty".