121616160052 has 24 divisors (see below), whose sum is σ = 214816262976. Its totient is φ = 60240609408.

The previous prime is 121616160023. The next prime is 121616160053. The reversal of 121616160052 is 250061616121.

It is a junction number, because it is equal to n+sod(n) for n = 121616159996 and 121616160023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121616160053) 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, 878863 + ... + 1007785.

It is an arithmetic number, because the mean of its divisors is an integer number (8950677624).

Almost surely, 2^121616160052 is an apocalyptic number.

It is an amenable number.

121616160052 is a deficient number, since it is larger than the sum of its proper divisors (93200102924).

121616160052 is a wasteful number, since it uses less digits than its factorization.

121616160052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131127 (or 131125 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

Adding to 121616160052 its reverse (250061616121), we get a palindrome (371677776173).

The spelling of 121616160052 in words is "one hundred twenty-one billion, six hundred sixteen million, one hundred sixty thousand, fifty-two".