8556669000 has 384 divisors, whose sum is σ = 33218640000. Its totient is φ = 1964736000.

The previous prime is 8556668987. The next prime is 8556669031. The reversal of 8556669000 is 9666558.

It is a super-2 number, since 2×8556669000² (a number of 21 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1878726 + ... + 1883274.

It is an arithmetic number, because the mean of its divisors is an integer number (86506875).

Almost surely, 2^8556669000 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 8556669000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16609320000).

8556669000 is an abundant number, since it is smaller than the sum of its proper divisors (24661971000).

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

8556669000 is a wasteful number, since it uses less digits than its factorization.

8556669000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4606 (or 4589 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 8556669000 is about 92502.2648371379. The cubic root of 8556669000 is about 2045.3528682118.

The spelling of 8556669000 in words is "eight billion, five hundred fifty-six million, six hundred sixty-nine thousand".