16671712221600 has 144 divisors (see below), whose sum is σ = 55733083666848. Its totient is φ = 4325633418240.

The previous prime is 16671712221569. The next prime is 16671712221613. The reversal of 16671712221600 is 612221717661.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 93783454 + ... + 93961053.

It is an arithmetic number, because the mean of its divisors is an integer number (387035303242).

Almost surely, 2^{16671712221600} is an apocalyptic number.

16671712221600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16671712221600 is an abundant number, since it is smaller than the sum of its proper divisors (39061371445248).

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

16671712221600 is a wasteful number, since it uses less digits than its factorization.

16671712221600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187744567 (or 187744554 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The spelling of 16671712221600 in words is "sixteen trillion, six hundred seventy-one billion, seven hundred twelve million, two hundred twenty-one thousand, six hundred".