3661144563613 has 8 divisors (see below), whose sum is σ = 3683170213632. Its totient is φ = 3639120135696.

The previous prime is 3661144563599. The next prime is 3661144563719. The reversal of 3661144563613 is 3163654411663.

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 3661144563613 - 2¹³ = 3661144555421 is a prime.

It is a super-2 number, since 2×3661144563613² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3661144063613) 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, 6107631 + ... + 6680227.

It is an arithmetic number, because the mean of its divisors is an integer number (460396276704).

Almost surely, 2^{3661144563613} is an apocalyptic number.

It is an amenable number.

3661144563613 is a deficient number, since it is larger than the sum of its proper divisors (22025650019).

3661144563613 is a wasteful number, since it uses less digits than its factorization.

3661144563613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611051.

The product of its digits is 2799360, while the sum is 49.

The spelling of 3661144563613 in words is "three trillion, six hundred sixty-one billion, one hundred forty-four million, five hundred sixty-three thousand, six hundred thirteen".