1966314271 has 2 divisors, whose sum is σ = 1966314272. Its totient is φ = 1966314270.

The previous prime is 1966314269. The next prime is 1966314341. The reversal of 1966314271 is 1724136691.

It is a weak prime.

It is an emirp because it is prime and its reverse (1724136691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1966314271 - 2¹ = 1966314269 is a prime.

It is a super-2 number, since 2×1966314271² = 7732783624676522882, which contains 22 as substring.

Together with 1966314269, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1966314211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 983157135 + 983157136.

It is an arithmetic number, because the mean of its divisors is an integer number (983157136).

Almost surely, 2^1966314271 is an apocalyptic number.

1966314271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1966314271 is an equidigital number, since it uses as much as digits as its factorization.

1966314271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 40.

The square root of 1966314271 is about 44343.1423221224. The cubic root of 1966314271 is about 1252.8074012250.

The spelling of 1966314271 in words is "one billion, nine hundred sixty-six million, three hundred fourteen thousand, two hundred seventy-one".