6668613402 has 16 divisors (see below), whose sum is σ = 14549702112. Its totient is φ = 2020791920.

The previous prime is 6668613397. The next prime is 6668613463. The reversal of 6668613402 is 2043168666.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50519733 + ... + 50519864.

It is an arithmetic number, because the mean of its divisors is an integer number (909356382).

Almost surely, 2^6668613402 is an apocalyptic number.

6668613402 is an abundant number, since it is smaller than the sum of its proper divisors (7881088710).

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

6668613402 is a wasteful number, since it uses less digits than its factorization.

6668613402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101039613.

The product of its (nonzero) digits is 248832, while the sum is 42.

The square root of 6668613402 is about 81661.5784931935. The cubic root of 6668613402 is about 1882.2552347421.

The spelling of 6668613402 in words is "six billion, six hundred sixty-eight million, six hundred thirteen thousand, four hundred two".