16846443720 has 128 divisors (see below), whose sum is σ = 56250720000. Its totient is φ = 4484712960.

The previous prime is 16846443707. The next prime is 16846443763. The reversal of 16846443720 is 2734464861.

16846443720 is a `hidden beast` number, since 168 + 46 + 443 + 7 + 2 + 0 = 666.

It is a super-2 number, since 2×16846443720² (a number of 21 digits) contains 22 as substring.

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, 633900 + ... + 659940.

It is an arithmetic number, because the mean of its divisors is an integer number (439458750).

Almost surely, 2^16846443720 is an apocalyptic number.

16846443720 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 16846443720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28125360000).

16846443720 is an abundant number, since it is smaller than the sum of its proper divisors (39404276280).

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

16846443720 is a wasteful number, since it uses less digits than its factorization.

16846443720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26660 (or 26650 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The spelling of 16846443720 in words is "sixteen billion, eight hundred forty-six million, four hundred forty-three thousand, seven hundred twenty".