13434455020 has 192 divisors, whose sum is σ = 37501470720. Its totient is φ = 3928117248.

The previous prime is 13434455017. The next prime is 13434455087. The reversal of 13434455020 is 2055443431.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1033602 + ... + 1046518.

It is an arithmetic number, because the mean of its divisors is an integer number (195320160).

Almost surely, 2^13434455020 is an apocalyptic number.

13434455020 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 13434455020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18750735360).

13434455020 is an abundant number, since it is smaller than the sum of its proper divisors (24067015700).

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

13434455020 is a wasteful number, since it uses less digits than its factorization.

13434455020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12992 (or 12990 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 13434455020 its reverse (2055443431), we get a palindrome (15489898451).

The spelling of 13434455020 in words is "thirteen billion, four hundred thirty-four million, four hundred fifty-five thousand, twenty".