121845546396 has 216 divisors, whose sum is σ = 374300559360. Its totient is φ = 33260318784.

The previous prime is 121845546379. The next prime is 121845546461. The reversal of 121845546396 is 693645548121.

121845546396 is a `hidden beast` number, since 1 + 2 + 1 + 8 + 4 + 5 + 546 + 3 + 96 = 666.

It is a congruent 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 71 ways as a sum of consecutive naturals, for example, 58382065 + ... + 58384151.

It is an arithmetic number, because the mean of its divisors is an integer number (1732872960).

Almost surely, 2^121845546396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121845546396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187150279680).

121845546396 is an abundant number, since it is smaller than the sum of its proper divisors (252455012964).

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

121845546396 is a wasteful number, since it uses less digits than its factorization.

121845546396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3573 (or 3561 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 54.

The spelling of 121845546396 in words is "one hundred twenty-one billion, eight hundred forty-five million, five hundred forty-six thousand, three hundred ninety-six".