20081270665204 has 48 divisors (see below), whose sum is σ = 41639147361280. Its totient is φ = 8292267924480.

The previous prime is 20081270665193. The next prime is 20081270665241. The reversal of 20081270665204 is 40256607218002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50314557 + ... + 50712100.

Almost surely, 2^{20081270665204} is an apocalyptic number.

It is an amenable number.

20081270665204 is an abundant number, since it is smaller than the sum of its proper divisors (21557876696076).

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

20081270665204 is a wasteful number, since it uses less digits than its factorization.

20081270665204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101026928 (or 101026926 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 20081270665204 in words is "twenty trillion, eighty-one billion, two hundred seventy million, six hundred sixty-five thousand, two hundred four".