120005555660 has 24 divisors (see below), whose sum is σ = 252040826016. Its totient is φ = 47996668160.

The previous prime is 120005555653. The next prime is 120005555713. The reversal of 120005555660 is 66555500021.

It is a self number, because there is not a number n which added to its sum of digits gives 120005555660.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167696 + ... + 517815.

It is an arithmetic number, because the mean of its divisors is an integer number (10501701084).

Almost surely, 2^120005555660 is an apocalyptic number.

120005555660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120005555660 is an abundant number, since it is smaller than the sum of its proper divisors (132035270356).

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

120005555660 is a wasteful number, since it uses less digits than its factorization.

120005555660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694273 (or 694271 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 120005555660 in words is "one hundred twenty billion, five million, five hundred fifty-five thousand, six hundred sixty".