16281513994464 has 96 divisors (see below), whose sum is σ = 47488609355040. Its totient is φ = 5427073022976.

The previous prime is 16281513994451. The next prime is 16281513994481. The reversal of 16281513994464 is 46449931518261.

16281513994464 is a `hidden beast` number, since 1 + 6 + 2 + 8 + 1 + 51 + 39 + 94 + 464 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59702002 + ... + 59974094.

It is an arithmetic number, because the mean of its divisors is an integer number (494673014115).

Almost surely, 2^{16281513994464} is an apocalyptic number.

It is an amenable number.

16281513994464 is an abundant number, since it is smaller than the sum of its proper divisors (31207095360576).

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

16281513994464 is a wasteful number, since it uses less digits than its factorization.

16281513994464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341369 (or 341355 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 63.

The spelling of 16281513994464 in words is "sixteen trillion, two hundred eighty-one billion, five hundred thirteen million, nine hundred ninety-four thousand, four hundred sixty-four".