121616162106 has 32 divisors (see below), whose sum is σ = 253825228800. Its totient is φ = 38773480944.

The previous prime is 121616162089. The next prime is 121616162119. The reversal of 121616162106 is 601261616121.

121616162106 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3210231 + ... + 3247893.

It is an arithmetic number, because the mean of its divisors is an integer number (7932038400).

Almost surely, 2^121616162106 is an apocalyptic number.

121616162106 is an abundant number, since it is smaller than the sum of its proper divisors (132209066694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121616162106 is a wasteful number, since it uses less digits than its factorization.

121616162106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61090.

The product of its (nonzero) digits is 5184, while the sum is 33.

Adding to 121616162106 its reverse (601261616121), we get a palindrome (722877778227).

The spelling of 121616162106 in words is "one hundred twenty-one billion, six hundred sixteen million, one hundred sixty-two thousand, one hundred six".