121346412165 has 48 divisors (see below), whose sum is σ = 242952405696. Its totient is φ = 55373760000.

The previous prime is 121346412163. The next prime is 121346412251. The reversal of 121346412165 is 561214643121.

121346412165 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 4 + 641 + 2 + 1 + 6 + 5 = 666.

It is not a de Polignac number, because 121346412165 - 2¹ = 121346412163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121346412163) 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 47 ways as a sum of consecutive naturals, for example, 7201711 + ... + 7218540.

It is an arithmetic number, because the mean of its divisors is an integer number (5061508452).

Almost surely, 2^121346412165 is an apocalyptic number.

121346412165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121346412165 is an abundant number, since it is smaller than the sum of its proper divisors (121605993531).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121346412165 is a wasteful number, since it uses less digits than its factorization.

121346412165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14420290 (or 14420287 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The spelling of 121346412165 in words is "one hundred twenty-one billion, three hundred forty-six million, four hundred twelve thousand, one hundred sixty-five".