121613169459 has 16 divisors (see below), whose sum is σ = 166726058400. Its totient is φ = 78815932416.

The previous prime is 121613169409. The next prime is 121613169473. The reversal of 121613169459 is 954961316121.

It is not a de Polignac number, because 121613169459 - 2⁸ = 121613169203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121613169409) 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 15 ways as a sum of consecutive naturals, for example, 3491214 + ... + 3525875.

It is an arithmetic number, because the mean of its divisors is an integer number (10420378650).

Almost surely, 2^121613169459 is an apocalyptic number.

121613169459 is a deficient number, since it is larger than the sum of its proper divisors (45112888941).

121613169459 is a wasteful number, since it uses less digits than its factorization.

121613169459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7017254.

The product of its digits is 349920, while the sum is 48.

The spelling of 121613169459 in words is "one hundred twenty-one billion, six hundred thirteen million, one hundred sixty-nine thousand, four hundred fifty-nine".