513632663011 has 16 divisors (see below), whose sum is σ = 576639560448. Its totient is φ = 454285296000.

The previous prime is 513632662943. The next prime is 513632663017. The reversal of 513632663011 is 110366236315.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 513632663011 - 2¹⁵ = 513632630243 is a prime.

It is a super-2 number, since 2×513632663011² (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 (513632663017) 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, 6268816 + ... + 6350221.

It is an arithmetic number, because the mean of its divisors is an integer number (36039972528).

Almost surely, 2^513632663011 is an apocalyptic number.

513632663011 is a deficient number, since it is larger than the sum of its proper divisors (63006897437).

513632663011 is a wasteful number, since it uses less digits than its factorization.

513632663011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12619182.

The product of its (nonzero) digits is 58320, while the sum is 37.

Adding to 513632663011 its reverse (110366236315), we get a palindrome (623998899326).

The spelling of 513632663011 in words is "five hundred thirteen billion, six hundred thirty-two million, six hundred sixty-three thousand, eleven".