120765217560 has 128 divisors (see below), whose sum is σ = 395103744000. Its totient is φ = 29350503936.

The previous prime is 120765217541. The next prime is 120765217589. The reversal of 120765217560 is 65712567021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 366720 + ... + 613199.

It is an arithmetic number, because the mean of its divisors is an integer number (3086748000).

Almost surely, 2^120765217560 is an apocalyptic number.

120765217560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120765217560 is an abundant number, since it is smaller than the sum of its proper divisors (274338526440).

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

120765217560 is a wasteful number, since it uses less digits than its factorization.

120765217560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980025 (or 980021 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 42.

The spelling of 120765217560 in words is "one hundred twenty billion, seven hundred sixty-five million, two hundred seventeen thousand, five hundred sixty".