511161126513 has 16 divisors (see below), whose sum is σ = 693361132800. Its totient is φ = 334871957520.

The previous prime is 511161126461. The next prime is 511161126517. The reversal of 511161126513 is 315621161115.

It is not a de Polignac number, because 511161126513 - 2⁹ = 511161126001 is a prime.

It is a super-2 number, since 2×511161126513² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511161126517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72403 + ... + 1013688.

It is an arithmetic number, because the mean of its divisors is an integer number (43335070800).

Almost surely, 2^511161126513 is an apocalyptic number.

It is an amenable number.

511161126513 is a deficient number, since it is larger than the sum of its proper divisors (182200006287).

511161126513 is a wasteful number, since it uses less digits than its factorization.

511161126513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088812.

The product of its digits is 5400, while the sum is 33.

Adding to 511161126513 its reverse (315621161115), we get a palindrome (826782287628).

The spelling of 511161126513 in words is "five hundred eleven billion, one hundred sixty-one million, one hundred twenty-six thousand, five hundred thirteen".