8888877666 has 96 divisors (see below), whose sum is σ = 20495509632. Its totient is φ = 2778209280.

The previous prime is 8888877619. The next prime is 8888877671. The reversal of 8888877666 is 6667788888.

It is a super-2 number, since 2×8888877666² (a number of 21 digits) contains 22 as substring.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 8888877594 and 8888877603.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13207506 + ... + 13208178.

It is an arithmetic number, because the mean of its divisors is an integer number (213494892).

Almost surely, 2^8888877666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8888877666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10247754816).

8888877666 is an abundant number, since it is smaller than the sum of its proper divisors (11606631966).

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

8888877666 is a wasteful number, since it uses less digits than its factorization.

8888877666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288 (or 1285 counting only the distinct ones).

The product of its digits is 346816512, while the sum is 72.

The square root of 8888877666 is about 94280.8446398313. The cubic root of 8888877666 is about 2071.4874654991.

The spelling of 8888877666 in words is "eight billion, eight hundred eighty-eight million, eight hundred seventy-seven thousand, six hundred sixty-six".