4060666640 has 80 divisors (see below), whose sum is σ = 9527664000. Its totient is φ = 1609445376.

The previous prime is 4060666517. The next prime is 4060666667. The reversal of 4060666640 is 466660604.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×4060666640² = 32978027122417779200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4060666594 and 4060666603.

It is an unprimeable number.

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, 6033344 + ... + 6034016.

It is an arithmetic number, because the mean of its divisors is an integer number (119095800).

Almost surely, 2^4060666640 is an apocalyptic number.

4060666640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4060666640 is an abundant number, since it is smaller than the sum of its proper divisors (5466997360).

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

4060666640 is a wasteful number, since it uses less digits than its factorization.

4060666640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264 (or 1258 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 4060666640 is about 63723.3602378280. The cubic root of 4060666640 is about 1595.3860093044.

The spelling of 4060666640 in words is "four billion, sixty million, six hundred sixty-six thousand, six hundred forty".