16771520456056 has 32 divisors (see below), whose sum is σ = 31981837942080. Its totient is φ = 8243199964800.

The previous prime is 16771520456051. The next prime is 16771520456057. The reversal of 16771520456056 is 65065402517761.

It is a junction number, because it is equal to n+sod(n) for n = 16771520455988 and 16771520456006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16771520456051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9809776 + ... + 11391871.

It is an arithmetic number, because the mean of its divisors is an integer number (999432435690).

Almost surely, 2^{16771520456056} is an apocalyptic number.

It is an amenable number.

16771520456056 is a deficient number, since it is larger than the sum of its proper divisors (15210317486024).

16771520456056 is a wasteful number, since it uses less digits than its factorization.

16771520456056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21203335 (or 21203331 counting only the distinct ones).

The product of its (nonzero) digits is 10584000, while the sum is 55.

The spelling of 16771520456056 in words is "sixteen trillion, seven hundred seventy-one billion, five hundred twenty million, four hundred fifty-six thousand, fifty-six".