4000664466 has 32 divisors (see below), whose sum is σ = 8914245120. Its totient is φ = 1329972912.

The previous prime is 4000664461. The next prime is 4000664489. The reversal of 4000664466 is 6644660004.

It is a happy number.

4000664466 is a `hidden beast` number, since 4 + 0 + 0 + 0 + 6 + 644 + 6 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 4000664466.

It is not an unprimeable number, because it can be changed into a prime (4000664461) 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, 79170 + ... + 119453.

It is an arithmetic number, because the mean of its divisors is an integer number (278570160).

Almost surely, 2^4000664466 is an apocalyptic number.

4000664466 is an abundant number, since it is smaller than the sum of its proper divisors (4913580654).

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

4000664466 is a wasteful number, since it uses less digits than its factorization.

4000664466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199007 (or 199001 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 4000664466 is about 63250.8060501999. The cubic root of 4000664466 is about 1587.4889449372.

The spelling of 4000664466 in words is "four billion, six hundred sixty-four thousand, four hundred sixty-six".