511120543145 has 4 divisors (see below), whose sum is σ = 613344651780. Its totient is φ = 408896434512.

The previous prime is 511120543133. The next prime is 511120543159. The reversal of 511120543145 is 541345021115.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 398479087504 + 112641455641 = 631252^2 + 335621^2 .

It is a cyclic number.

It is not a de Polignac number, because 511120543145 - 2⁶ = 511120543081 is a prime.

It is a super-2 number, since 2×511120543145² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51112054310 + ... + 51112054319.

It is an arithmetic number, because the mean of its divisors is an integer number (153336162945).

Almost surely, 2^511120543145 is an apocalyptic number.

It is an amenable number.

511120543145 is a deficient number, since it is larger than the sum of its proper divisors (102224108635).

511120543145 is a wasteful number, since it uses less digits than its factorization.

511120543145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102224108634.

The product of its (nonzero) digits is 12000, while the sum is 32.

The spelling of 511120543145 in words is "five hundred eleven billion, one hundred twenty million, five hundred forty-three thousand, one hundred forty-five".