16485822720 has 432 divisors, whose sum is σ = 60679819200. Its totient is φ = 4120657920.

The previous prime is 16485822697. The next prime is 16485822721. The reversal of 16485822720 is 2722858461.

16485822720 is a `hidden beast` number, since 1 + 6 + 48 + 582 + 2 + 7 + 20 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (16485822721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23857575 + ... + 23858265.

Almost surely, 2^16485822720 is an apocalyptic number.

16485822720 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 16485822720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30339909600).

16485822720 is an abundant number, since it is smaller than the sum of its proper divisors (44193996480).

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

16485822720 is a wasteful number, since it uses less digits than its factorization.

16485822720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846 (or 829 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

It can be divided in two parts, 164858 and 22720, that added together give a triangular number (187578 = T₆₁₂).

The spelling of 16485822720 in words is "sixteen billion, four hundred eighty-five million, eight hundred twenty-two thousand, seven hundred twenty".