6523456668 has 48 divisors (see below), whose sum is σ = 15326196480. Its totient is φ = 2159547264.

The previous prime is 6523456663. The next prime is 6523456669. The reversal of 6523456668 is 8666543256.

It is a self number, because there is not a number n which added to its sum of digits gives 6523456668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6523456661) 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 15 ways as a sum of consecutive naturals, for example, 2281896 + ... + 2284752.

It is an arithmetic number, because the mean of its divisors is an integer number (319295760).

Almost surely, 2^6523456668 is an apocalyptic number.

It is an amenable number.

6523456668 is an abundant number, since it is smaller than the sum of its proper divisors (8802739812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6523456668 is a wasteful number, since it uses less digits than its factorization.

6523456668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4106 (or 4104 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 51.

The square root of 6523456668 is about 80767.9185568131. The cubic root of 6523456668 is about 1868.4978134981.

The spelling of 6523456668 in words is "six billion, five hundred twenty-three million, four hundred fifty-six thousand, six hundred sixty-eight".