16209290500 has 96 divisors (see below), whose sum is σ = 38360649600. Its totient is φ = 5947862400.

The previous prime is 16209290497. The next prime is 16209290527. The reversal of 16209290500 is 509290261.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1051851 + ... + 1067149.

It is an arithmetic number, because the mean of its divisors is an integer number (399590100).

Almost surely, 2^16209290500 is an apocalyptic number.

16209290500 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 16209290500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19180324800).

16209290500 is an abundant number, since it is smaller than the sum of its proper divisors (22151359100).

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

16209290500 is a wasteful number, since it uses less digits than its factorization.

16209290500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15494 (or 15482 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The spelling of 16209290500 in words is "sixteen billion, two hundred nine million, two hundred ninety thousand, five hundred".