1066382641 has 2 divisors, whose sum is σ = 1066382642. Its totient is φ = 1066382640.

The previous prime is 1066382623. The next prime is 1066382659. The reversal of 1066382641 is 1462836601.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1066382623) and next prime (1066382659).

It can be written as a sum of positive squares in only one way, i.e., 981005041 + 85377600 = 31321^2 + 9240^2 .

It is a cyclic number.

It is not a de Polignac number, because 1066382641 - 2¹¹ = 1066380593 is a prime.

It is a super-2 number, since 2×1066382641² = 2274343874052269762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1066382641.

It is not a weakly prime, because it can be changed into another prime (1066382621) 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 as a sum of consecutive naturals, namely, 533191320 + 533191321.

It is an arithmetic number, because the mean of its divisors is an integer number (533191321).

Almost surely, 2^1066382641 is an apocalyptic number.

It is an amenable number.

1066382641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066382641 is an equidigital number, since it uses as much as digits as its factorization.

1066382641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 1066382641 is about 32655.5147103824. The cubic root of 1066382641 is about 1021.6552136628.

The spelling of 1066382641 in words is "one billion, sixty-six million, three hundred eighty-two thousand, six hundred forty-one".