6531161044067 has 8 divisors (see below), whose sum is σ = 7126628582640. Its totient is φ = 5935981109760.

The previous prime is 6531161044007. The next prime is 6531161044123. The reversal of 6531161044067 is 7604401611356.

It is a happy number.

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 6531161044067 - 2¹⁸ = 6531160781923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6531161044007) 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, 71853578 + ... + 71944415.

It is an arithmetic number, because the mean of its divisors is an integer number (890828572830).

Almost surely, 2^{6531161044067} is an apocalyptic number.

6531161044067 is a deficient number, since it is larger than the sum of its proper divisors (595467538573).

6531161044067 is a wasteful number, since it uses less digits than its factorization.

6531161044067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143802133.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 6531161044067 in words is "six trillion, five hundred thirty-one billion, one hundred sixty-one million, forty-four thousand, sixty-seven".