2993433661 has 4 divisors (see below), whose sum is σ = 3169518012. Its totient is φ = 2817349312.

The previous prime is 2993433659. The next prime is 2993433683. The reversal of 2993433661 is 1663343992.

2993433661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1108224100 + 1885209561 = 33290^2 + 43419^2 .

It is a cyclic number.

It is not a de Polignac number, because 2993433661 - 2¹ = 2993433659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2993433061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88042150 + ... + 88042183.

It is an arithmetic number, because the mean of its divisors is an integer number (792379503).

Almost surely, 2^2993433661 is an apocalyptic number.

It is an amenable number.

2993433661 is a deficient number, since it is larger than the sum of its proper divisors (176084351).

2993433661 is a wasteful number, since it uses less digits than its factorization.

2993433661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176084350.

The product of its digits is 629856, while the sum is 46.

The square root of 2993433661 is about 54712.2807146622. The cubic root of 2993433661 is about 1441.1965461428.

The spelling of 2993433661 in words is "two billion, nine hundred ninety-three million, four hundred thirty-three thousand, six hundred sixty-one".