1066214081 has 4 divisors (see below), whose sum is σ = 1082127792. Its totient is φ = 1050300372.

The previous prime is 1066214077. The next prime is 1066214113. The reversal of 1066214081 is 1804126601.

1066214081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 1804126601 = 23 ⋅78440287.

It is a cyclic number.

It is not a de Polignac number, because 1066214081 - 2² = 1066214077 is a prime.

It is a super-2 number, since 2×1066214081² = 2273624933045349122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066214011) 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, 7956755 + ... + 7956888.

It is an arithmetic number, because the mean of its divisors is an integer number (270531948).

Almost surely, 2^1066214081 is an apocalyptic number.

It is an amenable number.

1066214081 is a deficient number, since it is larger than the sum of its proper divisors (15913711).

1066214081 is an equidigital number, since it uses as much as digits as its factorization.

1066214081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15913710.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 1066214081 is about 32652.9337273085. The cubic root of 1066214081 is about 1021.6013808044.

The spelling of 1066214081 in words is "one billion, sixty-six million, two hundred fourteen thousand, eighty-one".