1966412167 has 2 divisors, whose sum is σ = 1966412168. Its totient is φ = 1966412166.

The previous prime is 1966412131. The next prime is 1966412183. The reversal of 1966412167 is 7612146691.

It is a strong prime.

It is an emirp because it is prime and its reverse (7612146691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1966412167 - 2¹¹ = 1966410119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1966412867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 983206083 + 983206084.

It is an arithmetic number, because the mean of its divisors is an integer number (983206084).

Almost surely, 2^1966412167 is an apocalyptic number.

1966412167 is a deficient number, since it is larger than the sum of its proper divisors (1).

1966412167 is an equidigital number, since it uses as much as digits as its factorization.

1966412167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 43.

The square root of 1966412167 is about 44344.2461543772. The cubic root of 1966412167 is about 1252.8281918653.

The spelling of 1966412167 in words is "one billion, nine hundred sixty-six million, four hundred twelve thousand, one hundred sixty-seven".