1066645211 has 8 divisors (see below), whose sum is σ = 1070679360. Its totient is φ = 1062619272.

The previous prime is 1066645169. The next prime is 1066645249. The reversal of 1066645211 is 1125466601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1066645211 - 2¹⁸ = 1066383067 is a prime.

It is a super-2 number, since 2×1066645211² = 2275464012298469042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066645291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379136 + ... + 381938.

It is an arithmetic number, because the mean of its divisors is an integer number (133834920).

Almost surely, 2^1066645211 is an apocalyptic number.

1066645211 is a deficient number, since it is larger than the sum of its proper divisors (4034149).

1066645211 is an equidigital number, since it uses as much as digits as its factorization.

1066645211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4105.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 1066645211 is about 32659.5347639858. The cubic root of 1066645211 is about 1021.7390591122.

The spelling of 1066645211 in words is "one billion, sixty-six million, six hundred forty-five thousand, two hundred eleven".