16555266761472 has 108 divisors (see below), whose sum is σ = 47810282421720. Its totient is φ = 5509477822464.

The previous prime is 16555266761447. The next prime is 16555266761479. The reversal of 16555266761472 is 27416766255561.

16555266761472 is a `hidden beast` number, since 1 + 6 + 5 + 5 + 5 + 2 + 6 + 6 + 7 + 614 + 7 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (16555266761479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4401322 + ... + 7244457.

Almost surely, 2^{16555266761472} is an apocalyptic number.

16555266761472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16555266761472 is an abundant number, since it is smaller than the sum of its proper divisors (31255015660248).

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

16555266761472 is a wasteful number, since it uses less digits than its factorization.

16555266761472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11646418 (or 11646401 counting only the distinct ones).

The product of its digits is 127008000, while the sum is 63.

The spelling of 16555266761472 in words is "sixteen trillion, five hundred fifty-five billion, two hundred sixty-six million, seven hundred sixty-one thousand, four hundred seventy-two".