16556016230655 has 32 divisors (see below), whose sum is σ = 28907729072640. Its totient is φ = 8024394026880.

The previous prime is 16556016230599. The next prime is 16556016230659. The reversal of 16556016230655 is 55603261065561.

It is not a de Polignac number, because 16556016230655 - 2⁸ = 16556016230399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16556016230598 and 16556016230607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16556016230659) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16803040 + ... + 17761029.

It is an arithmetic number, because the mean of its divisors is an integer number (903366533520).

Almost surely, 2^{16556016230655} is an apocalyptic number.

16556016230655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16556016230655 is a deficient number, since it is larger than the sum of its proper divisors (12351712841985).

16556016230655 is a wasteful number, since it uses less digits than its factorization.

16556016230655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34566991.

The product of its (nonzero) digits is 4860000, while the sum is 51.

The spelling of 16556016230655 in words is "sixteen trillion, five hundred fifty-six billion, sixteen million, two hundred thirty thousand, six hundred fifty-five".