2431006661 has 8 divisors (see below), whose sum is σ = 2566692000. Its totient is φ = 2296095120.

The previous prime is 2431006651. The next prime is 2431006663. The reversal of 2431006661 is 1666001342.

It is a happy number.

2431006661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2431006661 - 2¹⁸ = 2430744517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2431006663) 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, 186986 + ... + 199563.

It is an arithmetic number, because the mean of its divisors is an integer number (320836500).

Almost surely, 2^2431006661 is an apocalyptic number.

It is an amenable number.

2431006661 is a deficient number, since it is larger than the sum of its proper divisors (135685339).

2431006661 is a wasteful number, since it uses less digits than its factorization.

2431006661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386899.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 2431006661 is about 49305.2396911322. The cubic root of 2431006661 is about 1344.6070467069.

The spelling of 2431006661 in words is "two billion, four hundred thirty-one million, six thousand, six hundred sixty-one".