20015015223000 has 256 divisors, whose sum is σ = 73108507530240. Its totient is φ = 4463278464000.

The previous prime is 20015015222929. The next prime is 20015015223061. The reversal of 20015015223000 is 32251051002.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10762122 + ... + 12484121.

It is an arithmetic number, because the mean of its divisors is an integer number (285580107540).

Almost surely, 2^{20015015223000} is an apocalyptic number.

20015015223000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20015015223000 is an abundant number, since it is smaller than the sum of its proper divisors (53093492307240).

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

20015015223000 is a wasteful number, since it uses less digits than its factorization.

20015015223000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23246315 (or 23246301 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 20015015223000 its reverse (32251051002), we get a palindrome (20047266274002).

The spelling of 20015015223000 in words is "twenty trillion, fifteen billion, fifteen million, two hundred twenty-three thousand".