20352543020 has 12 divisors (see below), whose sum is σ = 42740340384. Its totient is φ = 8141017200.

The previous prime is 20352542989. The next prime is 20352543023. The reversal of 20352543020 is 2034525302.

It is not an unprimeable number, because it can be changed into a prime (20352543023) 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 3 ways as a sum of consecutive naturals, for example, 508813556 + ... + 508813595.

It is an arithmetic number, because the mean of its divisors is an integer number (3561695032).

Almost surely, 2^20352543020 is an apocalyptic number.

20352543020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20352543020 is an abundant number, since it is smaller than the sum of its proper divisors (22387797364).

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

20352543020 is a wasteful number, since it uses less digits than its factorization.

20352543020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017627160 (or 1017627158 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

The spelling of 20352543020 in words is "twenty billion, three hundred fifty-two million, five hundred forty-three thousand, twenty".