20015452113500 has 96 divisors (see below), whose sum is σ = 43884634248000. Its totient is φ = 7974943564800.

The previous prime is 20015452113467. The next prime is 20015452113511. The reversal of 20015452113500 is 531125451002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132786176 + ... + 132936824.

It is an arithmetic number, because the mean of its divisors is an integer number (457131606750).

Almost surely, 2^{20015452113500} is an apocalyptic number.

20015452113500 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 20015452113500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21942317124000).

20015452113500 is an abundant number, since it is smaller than the sum of its proper divisors (23869182134500).

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

20015452113500 is a wasteful number, since it uses less digits than its factorization.

20015452113500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151704 (or 151692 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 20015452113500 its reverse (531125451002), we get a palindrome (20546577564502).

The spelling of 20015452113500 in words is "twenty trillion, fifteen billion, four hundred fifty-two million, one hundred thirteen thousand, five hundred".