16416798720 has 192 divisors, whose sum is σ = 60024706560. Its totient is φ = 3752361984.

The previous prime is 16416798691. The next prime is 16416798763. The reversal of 16416798720 is 2789761461.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×16416798720² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176869 + ... + 253211.

It is an arithmetic number, because the mean of its divisors is an integer number (312628680).

Almost surely, 2^16416798720 is an apocalyptic number.

16416798720 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 16416798720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30012353280).

16416798720 is an abundant number, since it is smaller than the sum of its proper divisors (43607907840).

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

16416798720 is an equidigital number, since it uses as much as digits as its factorization.

16416798720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76380 (or 76360 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 51.

The spelling of 16416798720 in words is "sixteen billion, four hundred sixteen million, seven hundred ninety-eight thousand, seven hundred twenty".