16643410000 has 100 divisors (see below), whose sum is σ = 46052033632. Its totient is φ = 5706288000.

The previous prime is 16643409953. The next prime is 16643410001. The reversal of 16643410000 is 1434661.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16643410001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 48882 + ... + 188881.

Almost surely, 2^16643410000 is an apocalyptic number.

16643410000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16643410000 is an abundant number, since it is smaller than the sum of its proper divisors (29408623632).

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

16643410000 is an equidigital number, since it uses as much as digits as its factorization.

16643410000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237798 (or 237777 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 16643410000 its reverse (1434661), we get a palindrome (16644844661).

The spelling of 16643410000 in words is "sixteen billion, six hundred forty-three million, four hundred ten thousand".