4513616666661 has 8 divisors (see below), whose sum is σ = 6146201418624. Its totient is φ = 2945054846240.

The previous prime is 4513616666477. The next prime is 4513616666683. The reversal of 4513616666661 is 1666666163154.

4513616666661 is digitally balanced in base 3, 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 4513616666661 - 2¹³ = 4513616658469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4513616665661) 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, 16005732720 + ... + 16005733001.

It is an arithmetic number, because the mean of its divisors is an integer number (768275177328).

Almost surely, 2^{4513616666661} is an apocalyptic number.

It is an amenable number.

4513616666661 is a deficient number, since it is larger than the sum of its proper divisors (1632584751963).

4513616666661 is a wasteful number, since it uses less digits than its factorization.

4513616666661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32011465771.

The product of its digits is 16796160, while the sum is 57.

The spelling of 4513616666661 in words is "four trillion, five hundred thirteen billion, six hundred sixteen million, six hundred sixty-six thousand, six hundred sixty-one".