1606330303693 has 2 divisors, whose sum is σ = 1606330303694. Its totient is φ = 1606330303692.

The previous prime is 1606330303673. The next prime is 1606330303727. The reversal of 1606330303693 is 3963030336061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1482737276329 + 123593027364 = 1217677^2 + 351558^2 .

It is a cyclic number.

It is not a de Polignac number, because 1606330303693 - 2¹³ = 1606330295501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1606330303673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803165151846 + 803165151847.

It is an arithmetic number, because the mean of its divisors is an integer number (803165151847).

Almost surely, 2^{1606330303693} is an apocalyptic number.

It is an amenable number.

1606330303693 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606330303693 is an equidigital number, since it uses as much as digits as its factorization.

1606330303693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 472392, while the sum is 43.

The spelling of 1606330303693 in words is "one trillion, six hundred six billion, three hundred thirty million, three hundred three thousand, six hundred ninety-three".