20415130021250 has 80 divisors (see below), whose sum is σ = 42278680591488. Its totient is φ = 7351535136000.

The previous prime is 20415130021213. The next prime is 20415130021259. The reversal of 20415130021250 is 5212003151402.

It is not an unprimeable number, because it can be changed into a prime (20415130021259) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 20396294 + ... + 21373793.

Almost surely, 2^{20415130021250} is an apocalyptic number.

20415130021250 is an abundant number, since it is smaller than the sum of its proper divisors (21863550570238).

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

20415130021250 is a wasteful number, since it uses less digits than its factorization.

20415130021250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41770149 (or 41770134 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 20415130021250 its reverse (5212003151402), we get a palindrome (25627133172652).

The spelling of 20415130021250 in words is "twenty trillion, four hundred fifteen billion, one hundred thirty million, twenty-one thousand, two hundred fifty".