16166331500 has 96 divisors (see below), whose sum is σ = 39337159680. Its totient is φ = 5753496000.

The previous prime is 16166331497. The next prime is 16166331539. The reversal of 16166331500 is 513366161.

16166331500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16166331500² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 227231 + ... + 289769.

It is an arithmetic number, because the mean of its divisors is an integer number (409762080).

Almost surely, 2^16166331500 is an apocalyptic number.

16166331500 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 16166331500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19668579840).

16166331500 is an abundant number, since it is smaller than the sum of its proper divisors (23170828180).

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

16166331500 is a wasteful number, since it uses less digits than its factorization.

16166331500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62616 (or 62604 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

Adding to 16166331500 its reverse (513366161), we get a palindrome (16679697661).

The spelling of 16166331500 in words is "sixteen billion, one hundred sixty-six million, three hundred thirty-one thousand, five hundred".