1606406141066 has 4 divisors (see below), whose sum is σ = 2409609211602. Its totient is φ = 803203070532.

The previous prime is 1606406141023. The next prime is 1606406141069. The reversal of 1606406141066 is 6601416046061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1519043925025 + 87362216041 = 1232495^2 + 295571^2 .

It is not an unprimeable number, because it can be changed into a prime (1606406141069) 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 as a sum of consecutive naturals, namely, 401601535265 + ... + 401601535268.

Almost surely, 2^{1606406141066} is an apocalyptic number.

1606406141066 is a deficient number, since it is larger than the sum of its proper divisors (803203070536).

1606406141066 is an equidigital number, since it uses as much as digits as its factorization.

1606406141066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803203070535.

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 1606406141066 in words is "one trillion, six hundred six billion, four hundred six million, one hundred forty-one thousand, sixty-six".