3889000221566 has 8 divisors (see below), whose sum is σ = 5833551010944. Its totient is φ = 1944483217920.

The previous prime is 3889000221539. The next prime is 3889000221569. The reversal of 3889000221566 is 6651220009883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3889000221569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8156675 + ... + 8620286.

It is an arithmetic number, because the mean of its divisors is an integer number (729193876368).

Almost surely, 2^{3889000221566} is an apocalyptic number.

3889000221566 is a deficient number, since it is larger than the sum of its proper divisors (1944550789378).

3889000221566 is a wasteful number, since it uses less digits than its factorization.

3889000221566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16892866.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 3889000221566 in words is "three trillion, eight hundred eighty-nine billion, two hundred twenty-one thousand, five hundred sixty-six".