20556614401127 has 32 divisors (see below), whose sum is σ = 25304622971904. Its totient is φ = 16297690406400.

The previous prime is 20556614401027. The next prime is 20556614401151. The reversal of 20556614401127 is 72110441665502.

It is a cyclic number.

It is not a de Polignac number, because 20556614401127 - 2¹⁰ = 20556614400103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20556614401027) 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, 7291118 + ... + 9709460.

It is an arithmetic number, because the mean of its divisors is an integer number (790769467872).

Almost surely, 2^{20556614401127} is an apocalyptic number.

20556614401127 is a deficient number, since it is larger than the sum of its proper divisors (4748008570777).

20556614401127 is a wasteful number, since it uses less digits than its factorization.

20556614401127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419599.

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 20556614401127 in words is "twenty trillion, five hundred fifty-six billion, six hundred fourteen million, four hundred one thousand, one hundred twenty-seven".