20003534999080 has 64 divisors (see below), whose sum is σ = 45966683520000. Its totient is φ = 7830981402624.

The previous prime is 20003534999059. The next prime is 20003534999087. The reversal of 20003534999080 is 8099943530002.

It is not an unprimeable number, because it can be changed into a prime (20003534999087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96903016 + ... + 97109224.

It is an arithmetic number, because the mean of its divisors is an integer number (718229430000).

Almost surely, 2^{20003534999080} is an apocalyptic number.

20003534999080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20003534999080 is an abundant number, since it is smaller than the sum of its proper divisors (25963148520920).

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

20003534999080 is a wasteful number, since it uses less digits than its factorization.

20003534999080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257866 (or 257862 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 52.

The spelling of 20003534999080 in words is "twenty trillion, three billion, five hundred thirty-four million, nine hundred ninety-nine thousand, eighty".