3241616645661 has 4 divisors (see below), whose sum is σ = 4322155527552. Its totient is φ = 2161077763772.

The previous prime is 3241616645647. The next prime is 3241616645677. The reversal of 3241616645661 is 1665466161423.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3241616645661 - 2¹⁸ = 3241616383517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3241616645681) 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, 540269440941 + ... + 540269440946.

It is an arithmetic number, because the mean of its divisors is an integer number (1080538881888).

Almost surely, 2^{3241616645661} is an apocalyptic number.

It is an amenable number.

3241616645661 is a deficient number, since it is larger than the sum of its proper divisors (1080538881891).

3241616645661 is a wasteful number, since it uses less digits than its factorization.

3241616645661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080538881890.

The product of its digits is 3732480, while the sum is 51.

The spelling of 3241616645661 in words is "three trillion, two hundred forty-one billion, six hundred sixteen million, six hundred forty-five thousand, six hundred sixty-one".