16556632513047 has 192 divisors, whose sum is σ = 29679525757440. Its totient is φ = 8762469580800.

The previous prime is 16556632513033. The next prime is 16556632513093. The reversal of 16556632513047 is 74031523665561.

16556632513047 is a `hidden beast` number, since 1 + 6 + 5 + 5 + 6 + 6 + 325 + 1 + 304 + 7 = 666.

16556632513047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16556632513047 - 2¹⁹ = 16556631988759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16556632512984 and 16556632513002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16556632513027) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 977880172 + ... + 977897102.

It is an arithmetic number, because the mean of its divisors is an integer number (154580863320).

Almost surely, 2^{16556632513047} is an apocalyptic number.

16556632513047 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

16556632513047 is a deficient number, since it is larger than the sum of its proper divisors (13122893244393).

16556632513047 is a wasteful number, since it uses less digits than its factorization.

16556632513047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17614 (or 17611 counting only the distinct ones).

The product of its (nonzero) digits is 13608000, while the sum is 54.

The spelling of 16556632513047 in words is "sixteen trillion, five hundred fifty-six billion, six hundred thirty-two million, five hundred thirteen thousand, forty-seven".