17156161121 has 8 divisors (see below), whose sum is σ = 18717628800. Its totient is φ = 15594996240.

The previous prime is 17156161097. The next prime is 17156161153. The reversal of 17156161121 is 12116165171.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17156161121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17156161621) 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, 52175 + ... + 192443.

It is an arithmetic number, because the mean of its divisors is an integer number (2339703600).

Almost surely, 2^17156161121 is an apocalyptic number.

17156161121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

17156161121 is a deficient number, since it is larger than the sum of its proper divisors (1561467679).

17156161121 is a wasteful number, since it uses less digits than its factorization.

17156161121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151399.

The product of its digits is 2520, while the sum is 32.

The spelling of 17156161121 in words is "seventeen billion, one hundred fifty-six million, one hundred sixty-one thousand, one hundred twenty-one".