16816936500 has 768 divisors, whose sum is σ = 68196710400. Its totient is φ = 3548188800.

The previous prime is 16816936483. The next prime is 16816936547. The reversal of 16816936500 is 563961861.

16816936500 is a `hidden beast` number, since 1 + 6 + 81 + 69 + 3 + 6 + 500 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1293610494 + ... + 1293610506.

It is an arithmetic number, because the mean of its divisors is an integer number (88797800).

Almost surely, 2^16816936500 is an apocalyptic number.

16816936500 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 16816936500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34098355200).

16816936500 is an abundant number, since it is smaller than the sum of its proper divisors (51379773900).

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

16816936500 is an frugal number, since it uses more digits than its factorization.

16816936500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 16816936500 in words is "sixteen billion, eight hundred sixteen million, nine hundred thirty-six thousand, five hundred".