512455224112155 has 32 divisors (see below), whose sum is σ = 911033265669120. Its totient is φ = 273308926019040.

The previous prime is 512455224112151. The next prime is 512455224112157. The reversal of 512455224112155 is 551211422554215.

512455224112155 is a `hidden beast` number, since 5 + 1 + 2 + 4 + 5 + 522 + 4 + 112 + 1 + 5 + 5 = 666.

It is not a de Polignac number, because 512455224112155 - 2² = 512455224112151 is a prime.

It is a super-2 number, since 2×512455224112155² (a number of 30 digits) contains 22 as substring.

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 512455224112155.

It is not an unprimeable number, because it can be changed into a prime (512455224112151) 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 31 ways as a sum of consecutive naturals, for example, 72481950 + ... + 79237260.

It is an arithmetic number, because the mean of its divisors is an integer number (28469789552160).

Almost surely, 2^{512455224112155} is an apocalyptic number.

512455224112155 is a deficient number, since it is larger than the sum of its proper divisors (398578041556965).

512455224112155 is a wasteful number, since it uses less digits than its factorization.

512455224112155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7317248 (or 7317242 counting only the distinct ones).

The product of its digits is 800000, while the sum is 45.

It can be divided in two parts, 512455 and 224112155, that added together give a triangular number (224624610 = T₂₁₁₉₅).

The spelling of 512455224112155 in words is "five hundred twelve trillion, four hundred fifty-five billion, two hundred twenty-four million, one hundred twelve thousand, one hundred fifty-five".