20028232015272 has 512 divisors, whose sum is σ = 67581464832000. Its totient is φ = 5428543795200.

The previous prime is 20028232015213. The next prime is 20028232015301. The reversal of 20028232015272 is 27251023282002.

20028232015272 is a `hidden beast` number, since 2 + 0 + 0 + 282 + 320 + 1 + 52 + 7 + 2 = 666.

It is a super-2 number, since 2×20028232015272² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 75146647 + ... + 75412697.

It is an arithmetic number, because the mean of its divisors is an integer number (131995048500).

Almost surely, 2^{20028232015272} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20028232015272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33790732416000).

20028232015272 is an abundant number, since it is smaller than the sum of its proper divisors (47553232816728).

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

20028232015272 is a wasteful number, since it uses less digits than its factorization.

20028232015272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266198 (or 266188 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

Adding to 20028232015272 its reverse (27251023282002), we get a palindrome (47279255297274).

The spelling of 20028232015272 in words is "twenty trillion, twenty-eight billion, two hundred thirty-two million, fifteen thousand, two hundred seventy-two".