16434656500 has 96 divisors (see below), whose sum is σ = 38649985920. Its totient is φ = 6082112000.

The previous prime is 16434656489. The next prime is 16434656507. The reversal of 16434656500 is 565643461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16434656507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 485115 + ... + 517885.

It is an arithmetic number, because the mean of its divisors is an integer number (402604020).

Almost surely, 2^16434656500 is an apocalyptic number.

16434656500 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 16434656500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19324992960).

16434656500 is an abundant number, since it is smaller than the sum of its proper divisors (22215329420).

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

16434656500 is a wasteful number, since it uses less digits than its factorization.

16434656500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32866 (or 32854 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 16434656500 in words is "sixteen billion, four hundred thirty-four million, six hundred fifty-six thousand, five hundred".