1663141327 has 4 divisors (see below), whose sum is σ = 1676237056. Its totient is φ = 1650045600.

The previous prime is 1663141303. The next prime is 1663141357. The reversal of 1663141327 is 7231413661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1663141327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1663141292 and 1663141301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663141357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6547674 + ... + 6547927.

It is an arithmetic number, because the mean of its divisors is an integer number (419059264).

Almost surely, 2^1663141327 is an apocalyptic number.

1663141327 is a deficient number, since it is larger than the sum of its proper divisors (13095729).

1663141327 is a wasteful number, since it uses less digits than its factorization.

1663141327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13095728.

The product of its digits is 18144, while the sum is 34.

The square root of 1663141327 is about 40781.6297737106. The cubic root of 1663141327 is about 1184.7945609308.

Adding to 1663141327 its reverse (7231413661), we get a palindrome (8894554988).

The spelling of 1663141327 in words is "one billion, six hundred sixty-three million, one hundred forty-one thousand, three hundred twenty-seven".