668013468 has 24 divisors (see below), whose sum is σ = 1560816768. Its totient is φ = 222368496.

The previous prime is 668013461. The next prime is 668013481. The reversal of 668013468 is 864310866.

It is a happy number.

668013468 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

668013468 is a modest number, since divided by 13468 gives 668 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668013461) 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, 28546 + ... + 46377.

It is an arithmetic number, because the mean of its divisors is an integer number (65034032).

Almost surely, 2^668013468 is an apocalyptic number.

It is an amenable number.

668013468 is an abundant number, since it is smaller than the sum of its proper divisors (892803300).

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

668013468 is a wasteful number, since it uses less digits than its factorization.

668013468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75673 (or 75671 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 668013468 is about 25845.9565116093. The cubic root of 668013468 is about 874.1683387065.

The spelling of 668013468 in words is "six hundred sixty-eight million, thirteen thousand, four hundred sixty-eight".