20534432422540 has 48 divisors (see below), whose sum is σ = 43943642709120. Its totient is φ = 8057382644480.

The previous prime is 20534432422529. The next prime is 20534432422573. The reversal of 20534432422540 is 4522423443502.

It is a junction number, because it is equal to n+sod(n) for n = 20534432422493 and 20534432422502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4357626 + ... + 7749694.

It is an arithmetic number, because the mean of its divisors is an integer number (915492556440).

Almost surely, 2^{20534432422540} is an apocalyptic number.

20534432422540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20534432422540 is an abundant number, since it is smaller than the sum of its proper divisors (23409210286580).

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

20534432422540 is a wasteful number, since it uses less digits than its factorization.

20534432422540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3397842 (or 3397840 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 40.

The spelling of 20534432422540 in words is "twenty trillion, five hundred thirty-four billion, four hundred thirty-two million, four hundred twenty-two thousand, five hundred forty".