120055505570172 has 18 divisors (see below), whose sum is σ = 303473639080248. Its totient is φ = 40018501856712.

The previous prime is 120055505570153. The next prime is 120055505570173. The reversal of 120055505570172 is 271075505550021.

120055505570172 is a `hidden beast` number, since 1 + 2 + 0 + 0 + 5 + 5 + 5 + 0 + 5 + 570 + 1 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×120055505570172² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120055505570173) 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 5 ways as a sum of consecutive naturals, for example, 1667437577328 + ... + 1667437577399.

Almost surely, 2^{120055505570172} is an apocalyptic number.

120055505570172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120055505570172 is an abundant number, since it is smaller than the sum of its proper divisors (183418133510076).

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

120055505570172 is a wasteful number, since it uses less digits than its factorization.

120055505570172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334875154737 (or 3334875154732 counting only the distinct ones).

The product of its (nonzero) digits is 612500, while the sum is 45.

The spelling of 120055505570172 in words is "one hundred twenty trillion, fifty-five billion, five hundred five million, five hundred seventy thousand, one hundred seventy-two".