511340346163 has 4 divisors (see below), whose sum is σ = 511446902400. Its totient is φ = 511233789928.

The previous prime is 511340346107. The next prime is 511340346169. The reversal of 511340346163 is 361643043115.

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

It is a cyclic number.

It is not a de Polignac number, because 511340346163 - 2¹³ = 511340337971 is a prime.

It is a super-2 number, since 2×511340346163² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (511340346169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53270920 + ... + 53280517.

It is an arithmetic number, because the mean of its divisors is an integer number (127861725600).

Almost surely, 2^511340346163 is an apocalyptic number.

511340346163 is a deficient number, since it is larger than the sum of its proper divisors (106556237).

511340346163 is a wasteful number, since it uses less digits than its factorization.

511340346163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106556236.

The product of its (nonzero) digits is 77760, while the sum is 37.

Adding to 511340346163 its reverse (361643043115), we get a palindrome (872983389278).

The spelling of 511340346163 in words is "five hundred eleven billion, three hundred forty million, three hundred forty-six thousand, one hundred sixty-three".