1966414775 has 12 divisors (see below), whose sum is σ = 2625920472. Its totient is φ = 1452121440.

The previous prime is 1966414771. The next prime is 1966414829. The reversal of 1966414775 is 5774146691.

It is a happy number.

It is not a de Polignac number, because 1966414775 - 2² = 1966414771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1966414771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3024929 + ... + 3025578.

It is an arithmetic number, because the mean of its divisors is an integer number (218826706).

Almost surely, 2^1966414775 is an apocalyptic number.

1966414775 is a deficient number, since it is larger than the sum of its proper divisors (659505697).

1966414775 is a wasteful number, since it uses less digits than its factorization.

1966414775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6050530 (or 6050525 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 50.

The square root of 1966414775 is about 44344.2755606628. The cubic root of 1966414775 is about 1252.8287457293.

The spelling of 1966414775 in words is "one billion, nine hundred sixty-six million, four hundred fourteen thousand, seven hundred seventy-five".