16626867888 has 80 divisors (see below), whose sum is σ = 44607725280. Its totient is φ = 5330239488.

The previous prime is 16626867857. The next prime is 16626867931. The reversal of 16626867888 is 88876862661.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334506 + ... + 380982.

It is an arithmetic number, because the mean of its divisors is an integer number (557596566).

Almost surely, 2^16626867888 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 16626867888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22303862640).

16626867888 is an abundant number, since it is smaller than the sum of its proper divisors (27980857392).

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

16626867888 is a wasteful number, since it uses less digits than its factorization.

16626867888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46774 (or 46768 counting only the distinct ones).

The product of its digits is 74317824, while the sum is 66.

The spelling of 16626867888 in words is "sixteen billion, six hundred twenty-six million, eight hundred sixty-seven thousand, eight hundred eighty-eight".