6622679880 has 80 divisors (see below), whose sum is σ = 22259573820. Its totient is φ = 1766047104.

The previous prime is 6622679867. The next prime is 6622679893. The reversal of 6622679880 is 889762266.

6622679880 is a `hidden beast` number, since 6 + 622 + 6 + 7 + 9 + 8 + 8 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (6622679867) and next prime (6622679893).

It can be written as a sum of positive squares in 2 ways, for example, as 5877062244 + 745617636 = 76662^2 + 27306^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1018779 + ... + 1025258.

Almost surely, 2^6622679880 is an apocalyptic number.

6622679880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6622679880 is an abundant number, since it is smaller than the sum of its proper divisors (15636893940).

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

6622679880 is a wasteful number, since it uses less digits than its factorization.

6622679880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044060 (or 2044047 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The square root of 6622679880 is about 81379.8493485949. The cubic root of 6622679880 is about 1877.9236053808.

The spelling of 6622679880 in words is "six billion, six hundred twenty-two million, six hundred seventy-nine thousand, eight hundred eighty".