1965120067 has 2 divisors, whose sum is σ = 1965120068. Its totient is φ = 1965120066.

The previous prime is 1965120043. The next prime is 1965120071. The reversal of 1965120067 is 7600215691.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1965120067 - 2¹¹ = 1965118019 is a prime.

It is not a weakly prime, because it can be changed into another prime (1965120007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 982560033 + 982560034.

It is an arithmetic number, because the mean of its divisors is an integer number (982560034).

Almost surely, 2^1965120067 is an apocalyptic number.

1965120067 is a deficient number, since it is larger than the sum of its proper divisors (1).

1965120067 is an equidigital number, since it uses as much as digits as its factorization.

1965120067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 1965120067 is about 44329.6747901448. The cubic root of 1965120067 is about 1252.5537268571.

The spelling of 1965120067 in words is "one billion, nine hundred sixty-five million, one hundred twenty thousand, sixty-seven".