121056066960 has 160 divisors (see below), whose sum is σ = 377369953920. Its totient is φ = 32101761024.

The previous prime is 121056066947. The next prime is 121056066979. The reversal of 121056066960 is 69660650121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47677371 + ... + 47679909.

It is an arithmetic number, because the mean of its divisors is an integer number (2358562212).

Almost surely, 2^121056066960 is an apocalyptic number.

121056066960 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 121056066960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188684976960).

121056066960 is an abundant number, since it is smaller than the sum of its proper divisors (256313886960).

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

121056066960 is a wasteful number, since it uses less digits than its factorization.

121056066960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3585 (or 3579 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The spelling of 121056066960 in words is "one hundred twenty-one billion, fifty-six million, sixty-six thousand, nine hundred sixty".