1066641425 has 12 divisors (see below), whose sum is σ = 1344319836. Its totient is φ = 839323200.

The previous prime is 1066641419. The next prime is 1066641451. The reversal of 1066641425 is 5241466601.

1066641425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 45711121 + 1020930304 = 6761^2 + 31952^2 .

It is not a de Polignac number, because 1066641425 - 2¹² = 1066637329 is a prime.

It is a super-2 number, since 2×1066641425² = 2275447859052061250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 348194 + ... + 351243.

It is an arithmetic number, because the mean of its divisors is an integer number (112026653).

Almost surely, 2^1066641425 is an apocalyptic number.

It is an amenable number.

1066641425 is a deficient number, since it is larger than the sum of its proper divisors (277678411).

1066641425 is an equidigital number, since it uses as much as digits as its factorization.

1066641425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699508 (or 699503 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 1066641425 is about 32659.4768023004. The cubic root of 1066641425 is about 1021.7378502415.

The spelling of 1066641425 in words is "one billion, sixty-six million, six hundred forty-one thousand, four hundred twenty-five".