16499808000 has 864 divisors, whose sum is σ = 66521407680. Its totient is φ = 4025548800.

The previous prime is 16499807971. The next prime is 16499808019. The reversal of 16499808000 is 80899461.

16499808000 is a `hidden beast` number, since 1 + 6 + 499 + 80 + 80 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

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

It is a zygodrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 146015944 + ... + 146016056.

It is an arithmetic number, because the mean of its divisors is an integer number (76992370).

Almost surely, 2^16499808000 is an apocalyptic number.

16499808000 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 16499808000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33260703840).

16499808000 is an abundant number, since it is smaller than the sum of its proper divisors (50021599680).

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

16499808000 is a wasteful number, since it uses less digits than its factorization.

16499808000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 16499808000 in words is "sixteen billion, four hundred ninety-nine million, eight hundred eight thousand".