16556100210656 has 24 divisors (see below), whose sum is σ = 33718781680920. Its totient is φ = 7992600101248.

The previous prime is 16556100210653. The next prime is 16556100210667. The reversal of 16556100210656 is 65601200165561.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16556100210653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8920311686 + ... + 8920313541.

It is an arithmetic number, because the mean of its divisors is an integer number (1404949236705).

Almost surely, 2^{16556100210656} is an apocalyptic number.

16556100210656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16556100210656 is an abundant number, since it is smaller than the sum of its proper divisors (17162681470264).

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

16556100210656 is a wasteful number, since it uses less digits than its factorization.

16556100210656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17840625266 (or 17840625258 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 44.

The spelling of 16556100210656 in words is "sixteen trillion, five hundred fifty-six billion, one hundred million, two hundred ten thousand, six hundred fifty-six".