121607001166 has 16 divisors (see below), whose sum is σ = 212723618400. Its totient is φ = 52117285920.

The previous prime is 121607001133. The next prime is 121607001169. The reversal of 121607001166 is 661100706121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121607001169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88634155 + ... + 88635526.

It is an arithmetic number, because the mean of its divisors is an integer number (13295226150).

Almost surely, 2^121607001166 is an apocalyptic number.

121607001166 is a deficient number, since it is larger than the sum of its proper divisors (91116617234).

121607001166 is an equidigital number, since it uses as much as digits as its factorization.

121607001166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177269704 (or 177269690 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

Adding to 121607001166 its reverse (661100706121), we get a palindrome (782707707287).

The spelling of 121607001166 in words is "one hundred twenty-one billion, six hundred seven million, one thousand, one hundred sixty-six".