13203113547456 has 672 divisors, whose sum is σ = 47640245852160. Its totient is φ = 3411540467712.

The previous prime is 13203113547401. The next prime is 13203113547457. The reversal of 13203113547456 is 65474531130231.

13203113547456 is a `hidden beast` number, since 1 + 3 + 20 + 3 + 1 + 135 + 47 + 456 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is not an unprimeable number, because it can be changed into a prime (13203113547457) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 150184345 + ... + 150272231.

Almost surely, 2^{13203113547456} is an apocalyptic number.

13203113547456 is a gapful number since it is divisible by the number (16) 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 13203113547456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23820122926080).

13203113547456 is an abundant number, since it is smaller than the sum of its proper divisors (34437132304704).

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

13203113547456 is a wasteful number, since it uses less digits than its factorization.

13203113547456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88021 (or 88008 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

Adding to 13203113547456 its reverse (65474531130231), we get a palindrome (78677644677687).

The spelling of 13203113547456 in words is "thirteen trillion, two hundred three billion, one hundred thirteen million, five hundred forty-seven thousand, four hundred fifty-six".