16851009264 has 160 divisors (see below), whose sum is σ = 46461026304. Its totient is φ = 5254245120.

The previous prime is 16851009257. The next prime is 16851009277. The reversal of 16851009264 is 46290015861.

It is a congruent number.

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, 5803237 + ... + 5806139.

Almost surely, 2^16851009264 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 16851009264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23230513152).

16851009264 is an abundant number, since it is smaller than the sum of its proper divisors (29610017040).

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

16851009264 is a wasteful number, since it uses less digits than its factorization.

16851009264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3075 (or 3069 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 16851009264 in words is "sixteen billion, eight hundred fifty-one million, nine thousand, two hundred sixty-four".