13453533320 has 32 divisors (see below), whose sum is σ = 30321549720. Its totient is φ = 5372328960.

The previous prime is 13453533311. The next prime is 13453533323. The reversal of 13453533320 is 2333535431.

It can be written as a sum of positive squares in 4 ways, for example, as 10667171524 + 2786361796 = 103282^2 + 52786^2 .

It is not an unprimeable number, because it can be changed into a prime (13453533323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259871 + ... + 307310.

Almost surely, 2^13453533320 is an apocalyptic number.

13453533320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13453533320 is an abundant number, since it is smaller than the sum of its proper divisors (16868016400).

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

13453533320 is a wasteful number, since it uses less digits than its factorization.

13453533320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567785 (or 567781 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 32.

The spelling of 13453533320 in words is "thirteen billion, four hundred fifty-three million, five hundred thirty-three thousand, three hundred twenty".