20271065355 has 24 divisors (see below), whose sum is σ = 35163872640. Its totient is φ = 10802816640.

The previous prime is 20271065351. The next prime is 20271065357. The reversal of 20271065355 is 55356017202.

It is not a de Polignac number, because 20271065355 - 2² = 20271065351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20271065351) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 116731 + ... + 232740.

It is an arithmetic number, because the mean of its divisors is an integer number (1465161360).

Almost surely, 2^20271065355 is an apocalyptic number.

20271065355 is a deficient number, since it is larger than the sum of its proper divisors (14892807285).

20271065355 is a wasteful number, since it uses less digits than its factorization.

20271065355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350771 (or 350768 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The spelling of 20271065355 in words is "twenty billion, two hundred seventy-one million, sixty-five thousand, three hundred fifty-five".