16891822080 has 480 divisors, whose sum is σ = 68700602880. Its totient is φ = 3857448960.

The previous prime is 16891822061. The next prime is 16891822091. The reversal of 16891822080 is 8022819861.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 15482335 + ... + 15483425.

It is an arithmetic number, because the mean of its divisors is an integer number (143126256).

Almost surely, 2^16891822080 is an apocalyptic number.

16891822080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16891822080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34350301440).

16891822080 is an abundant number, since it is smaller than the sum of its proper divisors (51808780800).

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

16891822080 is an equidigital number, since it uses as much as digits as its factorization.

16891822080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140 (or 1108 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The spelling of 16891822080 in words is "sixteen billion, eight hundred ninety-one million, eight hundred twenty-two thousand, eighty".