121455452160 has 896 divisors, whose sum is σ = 511464153600. Its totient is φ = 26754416640.

The previous prime is 121455452149. The next prime is 121455452221. The reversal of 121455452160 is 61254554121.

121455452160 is a `hidden beast` number, since 1 + 2 + 1 + 45 + 5 + 452 + 160 = 666.

It is a tau number, because it is divible by the number of its divisors (896).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 224501490 + ... + 224502030.

Almost surely, 2^121455452160 is an apocalyptic number.

121455452160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121455452160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255732076800).

121455452160 is an abundant number, since it is smaller than the sum of its proper divisors (390008701440).

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

121455452160 is an equidigital number, since it uses as much as digits as its factorization.

121455452160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617 (or 587 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The spelling of 121455452160 in words is "one hundred twenty-one billion, four hundred fifty-five million, four hundred fifty-two thousand, one hundred sixty".