16722030666 has 64 divisors (see below), whose sum is σ = 36809303040. Its totient is φ = 5022284160.

The previous prime is 16722030631. The next prime is 16722030697. The reversal of 16722030666 is 66603022761.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8200075 + ... + 8202113.

It is an arithmetic number, because the mean of its divisors is an integer number (575145360).

Almost surely, 2^16722030666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16722030666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18404651520).

16722030666 is an abundant number, since it is smaller than the sum of its proper divisors (20087272374).

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

16722030666 is a wasteful number, since it uses less digits than its factorization.

16722030666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3099.

The product of its (nonzero) digits is 108864, while the sum is 39.

The spelling of 16722030666 in words is "sixteen billion, seven hundred twenty-two million, thirty thousand, six hundred sixty-six".