20412500425504 has 36 divisors (see below), whose sum is σ = 44172608754582. Its totient is φ = 9278409282560.

The previous prime is 20412500425463. The next prime is 20412500425507. The reversal of 20412500425504 is 40552400521402.

It can be written as a sum of positive squares in only one way, i.e., 19176516810000 + 1235983615504 = 4379100^2 + 1111748^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20412500425504.

It is not an unprimeable number, because it can be changed into a prime (20412500425507) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2635907857 + ... + 2635915600.

Almost surely, 2^{20412500425504} is an apocalyptic number.

It is an amenable number.

20412500425504 is an abundant number, since it is smaller than the sum of its proper divisors (23760108329078).

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

20412500425504 is a wasteful number, since it uses less digits than its factorization.

20412500425504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5271823489 (or 5271823470 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 34.

Adding to 20412500425504 its reverse (40552400521402), we get a palindrome (60964900946906).

The spelling of 20412500425504 in words is "twenty trillion, four hundred twelve billion, five hundred million, four hundred twenty-five thousand, five hundred four".