161101650101 has 16 divisors (see below), whose sum is σ = 199094340096. Its totient is φ = 127199152896.

The previous prime is 161101650089. The next prime is 161101650121. The reversal of 161101650101 is 101056101161.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 161101650101 - 2²⁶ = 161034541237 is a prime.

It is a super-3 number, since 3×161101650101³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161101650121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14396486 + ... + 14407671.

It is an arithmetic number, because the mean of its divisors is an integer number (12443396256).

Almost surely, 2^161101650101 is an apocalyptic number.

It is an amenable number.

161101650101 is a deficient number, since it is larger than the sum of its proper divisors (37992689995).

161101650101 is a wasteful number, since it uses less digits than its factorization.

161101650101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28804228.

The product of its (nonzero) digits is 180, while the sum is 23.

Adding to 161101650101 its reverse (101056101161), we get a palindrome (262157751262).

The spelling of 161101650101 in words is "one hundred sixty-one billion, one hundred one million, six hundred fifty thousand, one hundred one".