3661742655673 has 8 divisors (see below), whose sum is σ = 3854606457920. Its totient is φ = 3468892903920.

The previous prime is 3661742655671. The next prime is 3661742655689. The reversal of 3661742655673 is 3765562471663.

It is a happy number.

3661742655673 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 3661742655673 - 2¹ = 3661742655671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3661742655671) 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, 2975565 + ... + 4022122.

It is an arithmetic number, because the mean of its divisors is an integer number (481825807240).

Almost surely, 2^{3661742655673} is an apocalyptic number.

It is an amenable number.

3661742655673 is a deficient number, since it is larger than the sum of its proper divisors (192863802247).

3661742655673 is a wasteful number, since it uses less digits than its factorization.

3661742655673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7025247.

The product of its digits is 114307200, while the sum is 61.

The spelling of 3661742655673 in words is "three trillion, six hundred sixty-one billion, seven hundred forty-two million, six hundred fifty-five thousand, six hundred seventy-three".