1066706672 has 20 divisors (see below), whose sum is σ = 2088053856. Its totient is φ = 527854080.

The previous prime is 1066706671. The next prime is 1066706699. The reversal of 1066706672 is 2766076601.

It is a super-2 number, since 2×1066706672² = 2275726248178631168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066706671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342104 + ... + 345207.

Almost surely, 2^1066706672 is an apocalyptic number.

It is an amenable number.

1066706672 is a deficient number, since it is larger than the sum of its proper divisors (1021347184).

1066706672 is an equidigital number, since it uses as much as digits as its factorization.

1066706672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687416 (or 687410 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 1066706672 is about 32660.4756854520. The cubic root of 1066706672 is about 1021.7586832252.

The spelling of 1066706672 in words is "one billion, sixty-six million, seven hundred six thousand, six hundred seventy-two".