16720775366127 has 32 divisors (see below), whose sum is σ = 25540296883200. Its totient is φ = 9531853363200.

The previous prime is 16720775366101. The next prime is 16720775366149. The reversal of 16720775366127 is 72166357702761.

It is not a de Polignac number, because 16720775366127 - 2¹¹ = 16720775364079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16720775366167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57380998 + ... + 57671660.

It is an arithmetic number, because the mean of its divisors is an integer number (798134277600).

Almost surely, 2^{16720775366127} is an apocalyptic number.

16720775366127 is a deficient number, since it is larger than the sum of its proper divisors (8819521517073).

16720775366127 is a wasteful number, since it uses less digits than its factorization.

16720775366127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297223.

The product of its (nonzero) digits is 31116960, while the sum is 60.

The spelling of 16720775366127 in words is "sixteen trillion, seven hundred twenty billion, seven hundred seventy-five million, three hundred sixty-six thousand, one hundred twenty-seven".