20870186332271 has 2 divisors, whose sum is σ = 20870186332272. Its totient is φ = 20870186332270.

The previous prime is 20870186332223. The next prime is 20870186332283. The reversal of 20870186332271 is 17223368107802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20870186332271 - 2²² = 20870182137967 is a prime.

It is a super-2 number, since 2×20870186332271² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20870186332211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10435093166135 + 10435093166136.

It is an arithmetic number, because the mean of its divisors is an integer number (10435093166136).

Almost surely, 2^{20870186332271} is an apocalyptic number.

20870186332271 is a deficient number, since it is larger than the sum of its proper divisors (1).

20870186332271 is an equidigital number, since it uses as much as digits as its factorization.

20870186332271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 20870186332271 in words is "twenty trillion, eight hundred seventy billion, one hundred eighty-six million, three hundred thirty-two thousand, two hundred seventy-one".