121565066075 has 6 divisors (see below), whose sum is σ = 150740681964. Its totient is φ = 97252052840.

The previous prime is 121565066069. The next prime is 121565066083. The reversal of 121565066075 is 570660565121.

It is not a de Polignac number, because 121565066075 - 2⁸ = 121565065819 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2431301297 + ... + 2431301346.

It is an arithmetic number, because the mean of its divisors is an integer number (25123446994).

Almost surely, 2^121565066075 is an apocalyptic number.

121565066075 is a deficient number, since it is larger than the sum of its proper divisors (29175615889).

121565066075 is an equidigital number, since it uses as much as digits as its factorization.

121565066075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4862602653 (or 4862602648 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 44.

The spelling of 121565066075 in words is "one hundred twenty-one billion, five hundred sixty-five million, sixty-six thousand, seventy-five".