4066658658 has 24 divisors (see below), whose sum is σ = 9194185728. Its totient is φ = 1296615672.

The previous prime is 4066658657. The next prime is 4066658699. The reversal of 4066658658 is 8568566604.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4066658657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4911010 + ... + 4911837.

It is an arithmetic number, because the mean of its divisors is an integer number (383091072).

Almost surely, 2^4066658658 is an apocalyptic number.

4066658658 is an abundant number, since it is smaller than the sum of its proper divisors (5127527070).

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

4066658658 is a wasteful number, since it uses less digits than its factorization.

4066658658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9822878 (or 9822875 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The square root of 4066658658 is about 63770.3587727088. The cubic root of 4066658658 is about 1596.1703537045.

The spelling of 4066658658 in words is "four billion, sixty-six million, six hundred fifty-eight thousand, six hundred fifty-eight".