515328409115716 has 27 divisors (see below), whose sum is σ = 1049062051245789. Its totient is φ = 220854896273088.

The previous prime is 515328409115711. The next prime is 515328409115747. The reversal of 515328409115716 is 617511904823515.

It is a happy number.

The square root of 515328409115716 is 22700846.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 114236464917316 + 401091944198400 = 10688146^2 + 20027280^2 .

It is not an unprimeable number, because it can be changed into a prime (515328409115711) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 317001100 + ... + 318622588.

It is a 1-persistent number, because it is pandigital, but 2⋅515328409115716 = 1030656818231432 is not.

Almost surely, 2^{515328409115716} is an apocalyptic number.

515328409115716 is the 22700846-th square number.

It is an amenable number.

515328409115716 is an abundant number, since it is smaller than the sum of its proper divisors (533733642130073).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

515328409115716 is an frugal number, since it uses more digits than its factorization.

515328409115716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242996 (or 1621498 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 58.

The spelling of 515328409115716 in words is "five hundred fifteen trillion, three hundred twenty-eight billion, four hundred nine million, one hundred fifteen thousand, seven hundred sixteen".