20512000403524 has 24 divisors (see below), whose sum is σ = 41042984732288. Its totient is φ = 8786789331840.

The previous prime is 20512000403491. The next prime is 20512000403581. The reversal of 20512000403524 is 42530400021502.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 20512000403492 and 20512000403501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169437744 + ... + 169558759.

Almost surely, 2^{20512000403524} is an apocalyptic number.

It is an amenable number.

20512000403524 is an abundant number, since it is smaller than the sum of its proper divisors (20530984328764).

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

20512000403524 is a wasteful number, since it uses less digits than its factorization.

20512000403524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338998675 (or 338998673 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The spelling of 20512000403524 in words is "twenty trillion, five hundred twelve billion, four hundred three thousand, five hundred twenty-four".