20636261447076 has 36 divisors (see below), whose sum is σ = 56906054294544. Its totient is φ = 6253412559600.

The previous prime is 20636261447069. The next prime is 20636261447099. The reversal of 20636261447076 is 67074416263602.

20636261447076 is a `hidden beast` number, since 2 + 0 + 6 + 3 + 626 + 1 + 4 + 4 + 7 + 0 + 7 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26055885270 + ... + 26055886061.

It is an arithmetic number, because the mean of its divisors is an integer number (1580723730404).

Almost surely, 2^{20636261447076} is an apocalyptic number.

It is an amenable number.

20636261447076 is an abundant number, since it is smaller than the sum of its proper divisors (36269792847468).

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

20636261447076 is a wasteful number, since it uses less digits than its factorization.

20636261447076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52111771352 (or 52111771347 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 54.

The spelling of 20636261447076 in words is "twenty trillion, six hundred thirty-six billion, two hundred sixty-one million, four hundred forty-seven thousand, seventy-six".