16110161115981 has 8 divisors (see below), whose sum is σ = 21480996626880. Its totient is φ = 10739716507872.

The previous prime is 16110161115977. The next prime is 16110161116013. The reversal of 16110161115981 is 18951116101161.

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

It is not a de Polignac number, because 16110161115981 - 2² = 16110161115977 is a prime.

It is a super-2 number, since 2×16110161115981² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16110161155981) 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, 97629520 + ... + 97794393.

It is an arithmetic number, because the mean of its divisors is an integer number (2685124578360).

Almost surely, 2^{16110161115981} is an apocalyptic number.

It is an amenable number.

16110161115981 is a deficient number, since it is larger than the sum of its proper divisors (5370835510899).

16110161115981 is a wasteful number, since it uses less digits than its factorization.

16110161115981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195451395.

The product of its (nonzero) digits is 12960, while the sum is 42.

The spelling of 16110161115981 in words is "sixteen trillion, one hundred ten billion, one hundred sixty-one million, one hundred fifteen thousand, nine hundred eighty-one".