16656656250 has 224 divisors, whose sum is σ = 45674415360. Its totient is φ = 4024800000.

The previous prime is 16656656207. The next prime is 16656656251. The reversal of 16656656250 is 5265665661.

It is a self number, because there is not a number n which added to its sum of digits gives 16656656250.

It is not an unprimeable number, because it can be changed into a prime (16656656251) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 96281164 + ... + 96281336.

It is an arithmetic number, because the mean of its divisors is an integer number (203903640).

Almost surely, 2^16656656250 is an apocalyptic number.

16656656250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16656656250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22837207680).

16656656250 is an abundant number, since it is smaller than the sum of its proper divisors (29017759110).

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

16656656250 is an equidigital number, since it uses as much as digits as its factorization.

16656656250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 275 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 48.

The spelling of 16656656250 in words is "sixteen billion, six hundred fifty-six million, six hundred fifty-six thousand, two hundred fifty".