16655556660 has 96 divisors (see below), whose sum is σ = 49547756160. Its totient is φ = 4172410368.

The previous prime is 16655556647. The next prime is 16655556679. The reversal of 16655556660 is 6665555661.

16655556660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 31 ways as a sum of consecutive naturals, for example, 64974 + ... + 193733.

It is an arithmetic number, because the mean of its divisors is an integer number (516122460).

Almost surely, 2^16655556660 is an apocalyptic number.

16655556660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16655556660 is an abundant number, since it is smaller than the sum of its proper divisors (32892199500).

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

16655556660 is a wasteful number, since it uses less digits than its factorization.

16655556660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258785 (or 258783 counting only the distinct ones).

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

Subtracting from 16655556660 its reverse (6665555661), we obtain a palindrome (9990000999).

The spelling of 16655556660 in words is "sixteen billion, six hundred fifty-five million, five hundred fifty-six thousand, six hundred sixty".