121752055660 has 48 divisors (see below), whose sum is σ = 258336540000. Its totient is φ = 48196004864.

The previous prime is 121752055603. The next prime is 121752055661. The reversal of 121752055660 is 66550257121.

It is not an unprimeable number, because it can be changed into a prime (121752055661) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1448466 + ... + 1530214.

It is an arithmetic number, because the mean of its divisors is an integer number (5382011250).

Almost surely, 2^121752055660 is an apocalyptic number.

121752055660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121752055660 is an abundant number, since it is smaller than the sum of its proper divisors (136584484340).

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

121752055660 is a wasteful number, since it uses less digits than its factorization.

121752055660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82530 (or 82528 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 121752055660 in words is "one hundred twenty-one billion, seven hundred fifty-two million, fifty-five thousand, six hundred sixty".