6648668467 has 16 divisors (see below), whose sum is σ = 7657473024. Its totient is φ = 5654700000.

The previous prime is 6648668449. The next prime is 6648668479. The reversal of 6648668467 is 7648668466.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6648668467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6648665467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1086717 + ... + 1092817.

It is an arithmetic number, because the mean of its divisors is an integer number (478592064).

Almost surely, 2^6648668467 is an apocalyptic number.

6648668467 is a deficient number, since it is larger than the sum of its proper divisors (1008804557).

6648668467 is a wasteful number, since it uses less digits than its factorization.

6648668467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7290.

The product of its digits is 55738368, while the sum is 61.

The square root of 6648668467 is about 81539.3675901402. The cubic root of 6648668467 is about 1880.3768358643.

Subtracting 6648668467 from its reverse (7648668466), we obtain a palindrome (999999999).

The spelling of 6648668467 in words is "six billion, six hundred forty-eight million, six hundred sixty-eight thousand, four hundred sixty-seven".