1705606066 has 4 divisors (see below), whose sum is σ = 2558409102. Its totient is φ = 852803032.

The previous prime is 1705606061. The next prime is 1705606139. The reversal of 1705606066 is 6606065071.

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: 6606065071 = 17 ⋅388592063.

It can be written as a sum of positive squares in only one way, i.e., 1675674225 + 29931841 = 40935^2 + 5471^2 .

It is not an unprimeable number, because it can be changed into a prime (1705606061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426401515 + ... + 426401518.

Almost surely, 2^1705606066 is an apocalyptic number.

1705606066 is a deficient number, since it is larger than the sum of its proper divisors (852803036).

1705606066 is an equidigital number, since it uses as much as digits as its factorization.

1705606066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852803035.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 1705606066 is about 41298.9838373779. The cubic root of 1705606066 is about 1194.7936633645.

The spelling of 1705606066 in words is "one billion, seven hundred five million, six hundred six thousand, sixty-six".