1066645241 has 4 divisors (see below), whose sum is σ = 1101053184. Its totient is φ = 1032237300.

The previous prime is 1066645169. The next prime is 1066645249. The reversal of 1066645241 is 1425466601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1425466601 = 13 ⋅109651277.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1066645241 is a prime.

It is a super-2 number, since 2×1066645241² = 2275464140295896162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066645249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17203925 + ... + 17203986.

It is an arithmetic number, because the mean of its divisors is an integer number (275263296).

Almost surely, 2^1066645241 is an apocalyptic number.

It is an amenable number.

1066645241 is a deficient number, since it is larger than the sum of its proper divisors (34407943).

1066645241 is an equidigital number, since it uses as much as digits as its factorization.

1066645241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34407942.

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

The square root of 1066645241 is about 32659.5352232698. The cubic root of 1066645241 is about 1021.7390686912.

The spelling of 1066645241 in words is "one billion, sixty-six million, six hundred forty-five thousand, two hundred forty-one".