13534355020 has 48 divisors (see below), whose sum is σ = 29229113088. Its totient is φ = 5261066240.

The previous prime is 13534355011. The next prime is 13534355089. The reversal of 13534355020 is 2055343531.

It is a super-3 number, since 3×13534355020³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178629 + ... + 242851.

It is an arithmetic number, because the mean of its divisors is an integer number (608939856).

Almost surely, 2^13534355020 is an apocalyptic number.

13534355020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13534355020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14614556544).

13534355020 is an abundant number, since it is smaller than the sum of its proper divisors (15694758068).

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

13534355020 is a wasteful number, since it uses less digits than its factorization.

13534355020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64530 (or 64528 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 13534355020 its reverse (2055343531), we get a palindrome (15589698551).

The spelling of 13534355020 in words is "thirteen billion, five hundred thirty-four million, three hundred fifty-five thousand, twenty".