1606416663 has 8 divisors (see below), whose sum is σ = 2142717808. Its totient is φ = 1070529984.

The previous prime is 1606416601. The next prime is 1606416689. The reversal of 1606416663 is 3666146061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1606416663 - 2¹⁶ = 1606351127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606816663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94456 + ... + 110157.

It is an arithmetic number, because the mean of its divisors is an integer number (267839726).

Almost surely, 2^1606416663 is an apocalyptic number.

1606416663 is a deficient number, since it is larger than the sum of its proper divisors (536301145).

1606416663 is a wasteful number, since it uses less digits than its factorization.

1606416663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207233.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 1606416663 is about 40080.1280312326. The cubic root of 1606416663 is about 1171.1685461560.

The spelling of 1606416663 in words is "one billion, six hundred six million, four hundred sixteen thousand, six hundred sixty-three".