20272180688571 has 32 divisors (see below), whose sum is σ = 31956668444160. Its totient is φ = 11184468873984.

The previous prime is 20272180688567. The next prime is 20272180688581. The reversal of 20272180688571 is 17588608127202.

It is a happy number.

It is not a de Polignac number, because 20272180688571 - 2² = 20272180688567 is a prime.

It is a super-2 number, since 2×20272180688571² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20272180688581) 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, 42632896 + ... + 43105778.

It is an arithmetic number, because the mean of its divisors is an integer number (998645888880).

Almost surely, 2^{20272180688571} is an apocalyptic number.

20272180688571 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20272180688571 is a deficient number, since it is larger than the sum of its proper divisors (11684487755589).

20272180688571 is a wasteful number, since it uses less digits than its factorization.

20272180688571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543315.

The product of its (nonzero) digits is 6021120, while the sum is 57.

The spelling of 20272180688571 in words is "twenty trillion, two hundred seventy-two billion, one hundred eighty million, six hundred eighty-eight thousand, five hundred seventy-one".