20463512523420 has 24 divisors (see below), whose sum is σ = 57297835065744. Its totient is φ = 5456936672896.

The previous prime is 20463512523403. The next prime is 20463512523457. The reversal of 20463512523420 is 2432521536402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170529270969 + ... + 170529271088.

It is an arithmetic number, because the mean of its divisors is an integer number (2387409794406).

Almost surely, 2^{20463512523420} is an apocalyptic number.

20463512523420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20463512523420 is an abundant number, since it is smaller than the sum of its proper divisors (36834322542324).

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

20463512523420 is a wasteful number, since it uses less digits than its factorization.

20463512523420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341058542069 (or 341058542067 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 39.

The spelling of 20463512523420 in words is "twenty trillion, four hundred sixty-three billion, five hundred twelve million, five hundred twenty-three thousand, four hundred twenty".