966191069 has 2 divisors, whose sum is σ = 966191070. Its totient is φ = 966191068.

The previous prime is 966191053. The next prime is 966191087. The reversal of 966191069 is 960191669.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 597166969 + 369024100 = 24437^2 + 19210^2 .

It is a cyclic number.

It is not a de Polignac number, because 966191069 - 2⁴ = 966191053 is a prime.

It is a super-2 number, since 2×966191069² = 1867050363630725522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (966191029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483095534 + 483095535.

It is an arithmetic number, because the mean of its divisors is an integer number (483095535).

Almost surely, 2^966191069 is an apocalyptic number.

It is an amenable number.

966191069 is a deficient number, since it is larger than the sum of its proper divisors (1).

966191069 is an equidigital number, since it uses as much as digits as its factorization.

966191069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 157464, while the sum is 47.

The square root of 966191069 is about 31083.6141560147. The cubic root of 966191069 is about 988.6009108290.

The spelling of 966191069 in words is "nine hundred sixty-six million, one hundred ninety-one thousand, sixty-nine".