8122666880 has 128 divisors (see below), whose sum is σ = 19977516000. Its totient is φ = 3156803584.

The previous prime is 8122666879. The next prime is 8122666883. The reversal of 8122666880 is 886662218.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8122666883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3359432 + ... + 3361848.

Almost surely, 2^8122666880 is an apocalyptic number.

8122666880 is a gapful number since it is divisible by the number (80) 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 8122666880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9988758000).

8122666880 is an abundant number, since it is smaller than the sum of its proper divisors (11854849120).

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

8122666880 is a wasteful number, since it uses less digits than its factorization.

8122666880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2584 (or 2572 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 47.

The square root of 8122666880 is about 90125.8391361767. The cubic root of 8122666880 is about 2010.1704334743.

The spelling of 8122666880 in words is "eight billion, one hundred twenty-two million, six hundred sixty-six thousand, eight hundred eighty".