13045553280 has 512 divisors, whose sum is σ = 48028780800. Its totient is φ = 3344302080.

The previous prime is 13045553263. The next prime is 13045553281. The reversal of 13045553280 is 8235554031.

13045553280 is a `hidden beast` number, since 1 + 3 + 0 + 45 + 5 + 532 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (13045553281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 72074790 + ... + 72074970.

Almost surely, 2^13045553280 is an apocalyptic number.

13045553280 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 13045553280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24014390400).

13045553280 is an abundant number, since it is smaller than the sum of its proper divisors (34983227520).

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

13045553280 is a wasteful number, since it uses less digits than its factorization.

13045553280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 13045553280 in words is "thirteen billion, forty-five million, five hundred fifty-three thousand, two hundred eighty".