16556343366 has 32 divisors (see below), whose sum is σ = 33372518400. Its totient is φ = 5475626720.

The previous prime is 16556343241. The next prime is 16556343371. The reversal of 16556343366 is 66334365561.

16556343366 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16556343366² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427225 + ... + 464363.

It is an arithmetic number, because the mean of its divisors is an integer number (1042891200).

Almost surely, 2^16556343366 is an apocalyptic number.

16556343366 is an abundant number, since it is smaller than the sum of its proper divisors (16816175034).

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

16556343366 is a wasteful number, since it uses less digits than its factorization.

16556343366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37724.

The product of its digits is 3499200, while the sum is 48.

The spelling of 16556343366 in words is "sixteen billion, five hundred fifty-six million, three hundred forty-three thousand, three hundred sixty-six".