121055775773760 has 448 divisors, whose sum is σ = 445113978716160. Its totient is φ = 30936890234880.

The previous prime is 121055775773753. The next prime is 121055775773839. The reversal of 121055775773760 is 67377577550121.

121055775773760 is a `hidden beast` number, since 1 + 2 + 1 + 0 + 5 + 57 + 7 + 577 + 3 + 7 + 6 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25393489 + ... + 29781551.

Almost surely, 2^{121055775773760} is an apocalyptic number.

121055775773760 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 121055775773760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222556989358080).

121055775773760 is an abundant number, since it is smaller than the sum of its proper divisors (324058202942400).

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

121055775773760 is a wasteful number, since it uses less digits than its factorization.

121055775773760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4388223 (or 4388207 counting only the distinct ones).

The product of its (nonzero) digits is 75631500, while the sum is 63.

The spelling of 121055775773760 in words is "one hundred twenty-one trillion, fifty-five billion, seven hundred seventy-five million, seven hundred seventy-three thousand, seven hundred sixty".