161106116501 has 8 divisors (see below), whose sum is σ = 178375293984. Its totient is φ = 144274133520.

The previous prime is 161106116429. The next prime is 161106116513. The reversal of 161106116501 is 105611601161.

It is a happy number.

161106116501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-161106116501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161106116701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109297850 + ... + 109299323.

It is an arithmetic number, because the mean of its divisors is an integer number (22296911748).

Almost surely, 2^161106116501 is an apocalyptic number.

161106116501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

161106116501 is a deficient number, since it is larger than the sum of its proper divisors (17269177483).

161106116501 is a wasteful number, since it uses less digits than its factorization.

161106116501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218597251.

The product of its (nonzero) digits is 1080, while the sum is 29.

Adding to 161106116501 its reverse (105611601161), we get a palindrome (266717717662).

The spelling of 161106116501 in words is "one hundred sixty-one billion, one hundred six million, one hundred sixteen thousand, five hundred one".