6668780022 has 12 divisors (see below), whose sum is σ = 14449023420. Its totient is φ = 2222926668.

The previous prime is 6668780003. The next prime is 6668780101. The reversal of 6668780022 is 2200878666.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6668780022.

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 5 ways as a sum of consecutive naturals, for example, 185243872 + ... + 185243907.

It is an arithmetic number, because the mean of its divisors is an integer number (1204085285).

Almost surely, 2^6668780022 is an apocalyptic number.

6668780022 is an abundant number, since it is smaller than the sum of its proper divisors (7780243398).

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

6668780022 is a wasteful number, since it uses less digits than its factorization.

6668780022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370487787 (or 370487784 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 6668780022 is about 81662.5986728319. The cubic root of 6668780022 is about 1882.2709111022.

The spelling of 6668780022 in words is "six billion, six hundred sixty-eight million, seven hundred eighty thousand, twenty-two".