20556632046363 has 24 divisors (see below), whose sum is σ = 32020596034128. Its totient is φ = 11696232070656.

The previous prime is 20556632046347. The next prime is 20556632046439. The reversal of 20556632046363 is 36364023665502.

It is not a de Polignac number, because 20556632046363 - 2⁴ = 20556632046347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20556632046323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 300053806 + ... + 300122307.

It is an arithmetic number, because the mean of its divisors is an integer number (1334191501422).

Almost surely, 2^{20556632046363} is an apocalyptic number.

20556632046363 is a deficient number, since it is larger than the sum of its proper divisors (11463963987765).

20556632046363 is a wasteful number, since it uses less digits than its factorization.

20556632046363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600176363 (or 600176356 counting only the distinct ones).

The product of its (nonzero) digits is 13996800, while the sum is 51.

The spelling of 20556632046363 in words is "twenty trillion, five hundred fifty-six billion, six hundred thirty-two million, forty-six thousand, three hundred sixty-three".