1606236663 has 8 divisors (see below), whose sum is σ = 2191454848. Its totient is φ = 1045921464.

The previous prime is 1606236641. The next prime is 1606236673. The reversal of 1606236663 is 3666326061.

It is a happy number.

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

It is not a de Polignac number, because 1606236663 - 2¹³ = 1606228471 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 (1606236613) 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, 6225595 + ... + 6225852.

It is an arithmetic number, because the mean of its divisors is an integer number (273931856).

Almost surely, 2^1606236663 is an apocalyptic number.

1606236663 is a deficient number, since it is larger than the sum of its proper divisors (585218185).

1606236663 is a wasteful number, since it uses less digits than its factorization.

1606236663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12451493.

The product of its (nonzero) digits is 139968, while the sum is 39.

The square root of 1606236663 is about 40077.8824665176. The cubic root of 1606236663 is about 1171.1248011307.

It can be divided in two parts, 16062 and 36663, that added together give a palindrome (52725).

The spelling of 1606236663 in words is "one billion, six hundred six million, two hundred thirty-six thousand, six hundred sixty-three".