120655172202255 has 64 divisors (see below), whose sum is σ = 221986576281600. Its totient is φ = 62113549956480.

The previous prime is 120655172202221. The next prime is 120655172202289. The reversal of 120655172202255 is 552202271556021.

120655172202255 is a `hidden beast` number, since 1 + 2 + 0 + 6 + 551 + 7 + 2 + 20 + 22 + 55 = 666.

It is an interprime number because it is at equal distance from previous prime (120655172202221) and next prime (120655172202289).

It is not a de Polignac number, because 120655172202255 - 2¹⁰ = 120655172201231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 120655172202255.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35429089 + ... + 38685018.

It is an arithmetic number, because the mean of its divisors is an integer number (3468540254400).

Almost surely, 2^{120655172202255} is an apocalyptic number.

120655172202255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120655172202255 is a deficient number, since it is larger than the sum of its proper divisors (101331404079345).

120655172202255 is a wasteful number, since it uses less digits than its factorization.

120655172202255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74114541 (or 74114535 counting only the distinct ones).

The product of its (nonzero) digits is 840000, while the sum is 45.

The spelling of 120655172202255 in words is "one hundred twenty trillion, six hundred fifty-five billion, one hundred seventy-two million, two hundred two thousand, two hundred fifty-five".