1016443663 has 8 divisors (see below), whose sum is σ = 1026069408. Its totient is φ = 1006860384.

The previous prime is 1016443657. The next prime is 1016443679. The reversal of 1016443663 is 3663446101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1016443663 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 (1016443633) 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, 38545 + ... + 59317.

It is an arithmetic number, because the mean of its divisors is an integer number (128258676).

Almost surely, 2^1016443663 is an apocalyptic number.

1016443663 is a deficient number, since it is larger than the sum of its proper divisors (9625745).

1016443663 is a wasteful number, since it uses less digits than its factorization.

1016443663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21233.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 1016443663 is about 31881.7136145471. The cubic root of 1016443663 is about 1005.4514487044.

Adding to 1016443663 its reverse (3663446101), we get a palindrome (4679889764).

The spelling of 1016443663 in words is "one billion, sixteen million, four hundred forty-three thousand, six hundred sixty-three".