6161605559989 has 8 divisors (see below), whose sum is σ = 6953536055520. Its totient is φ = 5408305820400.

The previous prime is 6161605559983. The next prime is 6161605560001. The reversal of 6161605559989 is 9899555061616.

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 6161605559989 - 2³⁵ = 6127245821621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6161605559983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9657688647 + ... + 9657689284.

It is an arithmetic number, because the mean of its divisors is an integer number (869192006940).

Almost surely, 2^{6161605559989} is an apocalyptic number.

It is an amenable number.

6161605559989 is a deficient number, since it is larger than the sum of its proper divisors (791930495531).

6161605559989 is a wasteful number, since it uses less digits than its factorization.

6161605559989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19315377971.

The product of its (nonzero) digits is 157464000, while the sum is 70.

The spelling of 6161605559989 in words is "six trillion, one hundred sixty-one billion, six hundred five million, five hundred fifty-nine thousand, nine hundred eighty-nine".