6648160403 has 4 divisors (see below), whose sum is σ = 7039228680. Its totient is φ = 6257092128.

The previous prime is 6648160381. The next prime is 6648160451. The reversal of 6648160403 is 3040618466.

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

It is a cyclic number.

It is not a de Polignac number, because 6648160403 - 2⁶ = 6648160339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6648160903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195534113 + ... + 195534146.

It is an arithmetic number, because the mean of its divisors is an integer number (1759807170).

Almost surely, 2^6648160403 is an apocalyptic number.

6648160403 is a deficient number, since it is larger than the sum of its proper divisors (391068277).

6648160403 is a wasteful number, since it uses less digits than its factorization.

6648160403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391068276.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 6648160403 is about 81536.2520784467. The cubic root of 6648160403 is about 1880.3289377467.

Adding to 6648160403 its reverse (3040618466), we get a palindrome (9688778869).

The spelling of 6648160403 in words is "six billion, six hundred forty-eight million, one hundred sixty thousand, four hundred three".