1663044106 has 16 divisors (see below), whose sum is σ = 2563522560. Its totient is φ = 808563600.

The previous prime is 1663044007. The next prime is 1663044107. The reversal of 1663044106 is 6014403661.

It is not an unprimeable number, because it can be changed into a prime (1663044107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138615 + ... + 150133.

It is an arithmetic number, because the mean of its divisors is an integer number (160220160).

Almost surely, 2^1663044106 is an apocalyptic number.

1663044106 is a deficient number, since it is larger than the sum of its proper divisors (900478454).

1663044106 is a wasteful number, since it uses less digits than its factorization.

1663044106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13509.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1663044106 is about 40780.4377857816. The cubic root of 1663044106 is about 1184.7714742665.

Adding to 1663044106 its reverse (6014403661), we get a palindrome (7677447767).

The spelling of 1663044106 in words is "one billion, six hundred sixty-three million, forty-four thousand, one hundred six".