13447856016000 has 3072 divisors, whose sum is σ = 60353762826240. Its totient is φ = 2802843648000.

The previous prime is 13447856015989. The next prime is 13447856016013. The reversal of 13447856016000 is 61065874431.

13447856016000 is a `hidden beast` number, since 1 + 3 + 4 + 4 + 78 + 560 + 16 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 52326287872 + ... + 52326288128.

It is an arithmetic number, because the mean of its divisors is an integer number (19646407170).

Almost surely, 2^{13447856016000} is an apocalyptic number.

13447856016000 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 13447856016000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30176881413120).

13447856016000 is an abundant number, since it is smaller than the sum of its proper divisors (46905906810240).

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

13447856016000 is a wasteful number, since it uses less digits than its factorization.

13447856016000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 13447856016000 in words is "thirteen trillion, four hundred forty-seven billion, eight hundred fifty-six million, sixteen thousand".