120051205556 has 12 divisors (see below), whose sum is σ = 210130993380. Its totient is φ = 60013778880.

The previous prime is 120051205531. The next prime is 120051205567. The reversal of 120051205556 is 655502150021.

It can be written as a sum of positive squares in 2 ways, for example, as 74632776100 + 45418429456 = 273190^2 + 213116^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2933111 + ... + 2973758.

It is an arithmetic number, because the mean of its divisors is an integer number (17510916115).

Almost surely, 2^120051205556 is an apocalyptic number.

It is an amenable number.

120051205556 is a deficient number, since it is larger than the sum of its proper divisors (90079787824).

120051205556 is a wasteful number, since it uses less digits than its factorization.

120051205556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5911954 (or 5911952 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 32.

Adding to 120051205556 its reverse (655502150021), we get a palindrome (775553355577).

The spelling of 120051205556 in words is "one hundred twenty billion, fifty-one million, two hundred five thousand, five hundred fifty-six".