1066700671 has 4 divisors (see below), whose sum is σ = 1067360344. Its totient is φ = 1066041000.

The previous prime is 1066700659. The next prime is 1066700681. The reversal of 1066700671 is 1760076601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1760076601 = 101 ⋅17426501.

It is a cyclic number.

It is not a de Polignac number, because 1066700671 - 2⁷ = 1066700543 is a prime.

It is a super-2 number, since 2×1066700671² = 2275700643023700482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066700681) 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, 327405 + ... + 330646.

It is an arithmetic number, because the mean of its divisors is an integer number (266840086).

Almost surely, 2^1066700671 is an apocalyptic number.

1066700671 is a deficient number, since it is larger than the sum of its proper divisors (659673).

1066700671 is an equidigital number, since it uses as much as digits as its factorization.

1066700671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659672.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 1066700671 is about 32660.3838158709. The cubic root of 1066700671 is about 1021.7567671766.

The spelling of 1066700671 in words is "one billion, sixty-six million, seven hundred thousand, six hundred seventy-one".