966664441 has 2 divisors, whose sum is σ = 966664442. Its totient is φ = 966664440.

The previous prime is 966664379. The next prime is 966664487. The reversal of 966664441 is 144466669.

It is an a-pointer prime, because the next prime (966664487) can be obtained adding 966664441 to its sum of digits (46).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 918999225 + 47665216 = 30315^2 + 6904^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-966664441 is a prime.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 966664391 and 966664400.

It is not a weakly prime, because it can be changed into another prime (966664841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483332220 + 483332221.

It is an arithmetic number, because the mean of its divisors is an integer number (483332221).

Almost surely, 2^966664441 is an apocalyptic number.

It is an amenable number.

966664441 is a deficient number, since it is larger than the sum of its proper divisors (1).

966664441 is an equidigital number, since it uses as much as digits as its factorization.

966664441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 46.

The square root of 966664441 is about 31091.2277177985. The cubic root of 966664441 is about 988.7623349338.

The spelling of 966664441 in words is "nine hundred sixty-six million, six hundred sixty-four thousand, four hundred forty-one".