116165611661 has 8 divisors (see below), whose sum is σ = 126842290848. Its totient is φ = 105508294000.

The previous prime is 116165611631. The next prime is 116165611693. The reversal of 116165611661 is 166116561611.

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 116165611661 - 2¹⁰ = 116165610637 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 (116165611631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4827830 + ... + 4851831.

It is an arithmetic number, because the mean of its divisors is an integer number (15855286356).

Almost surely, 2^116165611661 is an apocalyptic number.

116165611661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

116165611661 is a deficient number, since it is larger than the sum of its proper divisors (10676679187).

116165611661 is a wasteful number, since it uses less digits than its factorization.

116165611661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9680763.

The product of its digits is 38880, while the sum is 41.

The spelling of 116165611661 in words is "one hundred sixteen billion, one hundred sixty-five million, six hundred eleven thousand, six hundred sixty-one".