1606808618041 has 4 divisors (see below), whose sum is σ = 1752882128784. Its totient is φ = 1460735107300.

The previous prime is 1606808618021. The next prime is 1606808618047. The reversal of 1606808618041 is 1408168086061.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1606808618041 - 2¹⁵ = 1606808585273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1606808618047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73036755355 + ... + 73036755376.

It is an arithmetic number, because the mean of its divisors is an integer number (438220532196).

Almost surely, 2^{1606808618041} is an apocalyptic number.

1606808618041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1606808618041 is a deficient number, since it is larger than the sum of its proper divisors (146073510743).

1606808618041 is a wasteful number, since it uses less digits than its factorization.

1606808618041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146073510742.

The product of its (nonzero) digits is 442368, while the sum is 49.

The spelling of 1606808618041 in words is "one trillion, six hundred six billion, eight hundred eight million, six hundred eighteen thousand, forty-one".