513216006261 has 8 divisors (see below), whose sum is σ = 782043438144. Its totient is φ = 293266289280.

The previous prime is 513216006239. The next prime is 513216006341. The reversal of 513216006261 is 162600612315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 513216006261 - 2¹⁵ = 513215973493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513216002261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12219428700 + ... + 12219428741.

It is an arithmetic number, because the mean of its divisors is an integer number (97755429768).

Almost surely, 2^513216006261 is an apocalyptic number.

It is an amenable number.

513216006261 is a deficient number, since it is larger than the sum of its proper divisors (268827431883).

513216006261 is a wasteful number, since it uses less digits than its factorization.

513216006261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24438857451.

The product of its (nonzero) digits is 12960, while the sum is 33.

Adding to 513216006261 its reverse (162600612315), we get a palindrome (675816618576).

The spelling of 513216006261 in words is "five hundred thirteen billion, two hundred sixteen million, six thousand, two hundred sixty-one".