511364343663 has 6 divisors (see below), whose sum is σ = 738637385304. Its totient is φ = 340909562436.

The previous prime is 511364343643. The next prime is 511364343667. The reversal of 511364343663 is 366343463115.

It is a happy number.

511364343663 is a `hidden beast` number, since 5 + 113 + 6 + 43 + 436 + 63 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-511364343663 is a prime.

It is a super-2 number, since 2×511364343663² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511364343667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28409130195 + ... + 28409130212.

It is an arithmetic number, because the mean of its divisors is an integer number (123106230884).

Almost surely, 2^511364343663 is an apocalyptic number.

511364343663 is a deficient number, since it is larger than the sum of its proper divisors (227273041641).

511364343663 is a wasteful number, since it uses less digits than its factorization.

511364343663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56818260413 (or 56818260410 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 45.

The spelling of 511364343663 in words is "five hundred eleven billion, three hundred sixty-four million, three hundred forty-three thousand, six hundred sixty-three".