16447126545408 has 1056 divisors, whose sum is σ = 52464256540416. Its totient is φ = 4544343834624.

The previous prime is 16447126545397. The next prime is 16447126545413. The reversal of 16447126545408 is 80454562174461.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 63996601216 + ... + 63996601472.

Almost surely, 2^{16447126545408} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16447126545408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26232128270208).

16447126545408 is an abundant number, since it is smaller than the sum of its proper divisors (36017129995008).

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

16447126545408 is a wasteful number, since it uses less digits than its factorization.

16447126545408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 57.

The spelling of 16447126545408 in words is "sixteen trillion, four hundred forty-seven billion, one hundred twenty-six million, five hundred forty-five thousand, four hundred eight".