515243342516 has 48 divisors (see below), whose sum is σ = 1035367401600. Its totient is φ = 219775180800.

The previous prime is 515243342503. The next prime is 515243342599. The reversal of 515243342516 is 615243342515.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4990271 + ... + 5092473.

It is an arithmetic number, because the mean of its divisors is an integer number (21570154200).

Almost surely, 2^515243342516 is an apocalyptic number.

It is an amenable number.

515243342516 is an abundant number, since it is smaller than the sum of its proper divisors (520124059084).

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

515243342516 is a wasteful number, since it uses less digits than its factorization.

515243342516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103064 (or 103062 counting only the distinct ones).

The product of its digits is 432000, while the sum is 41.

Subtracting 515243342516 from its reverse (615243342515), we obtain a palindrome (99999999999).

The spelling of 515243342516 in words is "five hundred fifteen billion, two hundred forty-three million, three hundred forty-two thousand, five hundred sixteen".