8800661880 has 128 divisors (see below), whose sum is σ = 29378203200. Its totient is φ = 2343430656.

The previous prime is 8800661861. The next prime is 8800661887. The reversal of 8800661880 is 881660088.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8800661887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 786082 + ... + 797198.

Almost surely, 2^8800661880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8800661880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14689101600).

8800661880 is an abundant number, since it is smaller than the sum of its proper divisors (20577541320).

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

8800661880 is a wasteful number, since it uses less digits than its factorization.

8800661880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11870 (or 11860 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The square root of 8800661880 is about 93811.8429623893. The cubic root of 8800661880 is about 2064.6119906426.

The spelling of 8800661880 in words is "eight billion, eight hundred million, six hundred sixty-one thousand, eight hundred eighty".