1066561741706 has 8 divisors (see below), whose sum is σ = 1602452471844. Its totient is φ = 532410917760.

The previous prime is 1066561741699. The next prime is 1066561741753. The reversal of 1066561741706 is 6071471656601.

It can be written as a sum of positive squares in 2 ways, for example, as 976126216081 + 90435525625 = 987991^2 + 300725^2 .

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

It is a super-2 number, since 2×1066561741706² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434975015 + ... + 434977466.

Almost surely, 2^{1066561741706} is an apocalyptic number.

1066561741706 is a deficient number, since it is larger than the sum of its proper divisors (535890730138).

1066561741706 is an equidigital number, since it uses as much as digits as its factorization.

1066561741706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869953096.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The spelling of 1066561741706 in words is "one trillion, sixty-six billion, five hundred sixty-one million, seven hundred forty-one thousand, seven hundred six".