16728255332856 has 80 divisors (see below), whose sum is σ = 47223538179840. Its totient is φ = 5532178901760.

The previous prime is 16728255332837. The next prime is 16728255332891. The reversal of 16728255332856 is 65823355282761.

16728255332856 is a `hidden beast` number, since 1 + 6 + 7 + 2 + 8 + 2 + 553 + 3 + 28 + 56 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 16728255332793 and 16728255332802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 101552385 + ... + 101716976.

It is an arithmetic number, because the mean of its divisors is an integer number (590294227248).

Almost surely, 2^{16728255332856} is an apocalyptic number.

It is an amenable number.

16728255332856 is an abundant number, since it is smaller than the sum of its proper divisors (30495282846984).

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

16728255332856 is a wasteful number, since it uses less digits than its factorization.

16728255332856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203269506 (or 203269493 counting only the distinct ones).

The product of its digits is 145152000, while the sum is 63.

The spelling of 16728255332856 in words is "sixteen trillion, seven hundred twenty-eight billion, two hundred fifty-five million, three hundred thirty-two thousand, eight hundred fifty-six".