1606666424 has 32 divisors (see below), whose sum is σ = 3356294400. Its totient is φ = 714762720.

The previous prime is 1606666367. The next prime is 1606666427. The reversal of 1606666424 is 4246666061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606666427) 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 in 7 ways as a sum of consecutive naturals, for example, 190094 + ... + 198365.

It is an arithmetic number, because the mean of its divisors is an integer number (104884200).

Almost surely, 2^1606666424 is an apocalyptic number.

It is an amenable number.

1606666424 is an abundant number, since it is smaller than the sum of its proper divisors (1749627976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1606666424 is a wasteful number, since it uses less digits than its factorization.

1606666424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388523 (or 388519 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 41.

The square root of 1606666424 is about 40083.2436811194. The cubic root of 1606666424 is about 1171.2292396394.

The spelling of 1606666424 in words is "one billion, six hundred six million, six hundred sixty-six thousand, four hundred twenty-four".