121186660461652 has 12 divisors (see below), whose sum is σ = 213302532432276. Its totient is φ = 60243079766720.

The previous prime is 121186660461611. The next prime is 121186660461653. The reversal of 121186660461652 is 256164066681121.

It can be written as a sum of positive squares in 2 ways, for example, as 69449655653316 + 51737004808336 = 8333646^2 + 7192844^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121186660461593 and 121186660461602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121186660461653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87562615249 + ... + 87562616632.

It is an arithmetic number, because the mean of its divisors is an integer number (17775211036023).

Almost surely, 2^{121186660461652} is an apocalyptic number.

It is an amenable number.

121186660461652 is a deficient number, since it is larger than the sum of its proper divisors (92115871970624).

121186660461652 is a wasteful number, since it uses less digits than its factorization.

121186660461652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175125232058 (or 175125232056 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 121186660461652 in words is "one hundred twenty-one trillion, one hundred eighty-six billion, six hundred sixty million, four hundred sixty-one thousand, six hundred fifty-two".