20164104500 has 96 divisors (see below), whose sum is σ = 45306293760. Its totient is φ = 7835971200.

The previous prime is 20164104451. The next prime is 20164104517. The reversal of 20164104500 is 540146102.

It is a super-2 number, since 2×20164104500² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3263414 + ... + 3269586.

It is an arithmetic number, because the mean of its divisors is an integer number (471940560).

Almost surely, 2^20164104500 is an apocalyptic number.

20164104500 is a gapful number since it is divisible by the number (20) 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 20164104500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22653146880).

20164104500 is an abundant number, since it is smaller than the sum of its proper divisors (25142189260).

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

20164104500 is a wasteful number, since it uses less digits than its factorization.

20164104500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6378 (or 6366 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The spelling of 20164104500 in words is "twenty billion, one hundred sixty-four million, one hundred four thousand, five hundred".