515543412012 has 24 divisors (see below), whose sum is σ = 1203053532912. Its totient is φ = 171830817600.

The previous prime is 515543411963. The next prime is 515543412101. The reversal of 515543412012 is 210214345515.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1996539 + ... + 2239922.

It is an arithmetic number, because the mean of its divisors is an integer number (50127230538).

Almost surely, 2^515543412012 is an apocalyptic number.

It is an amenable number.

515543412012 is an abundant number, since it is smaller than the sum of its proper divisors (687510120900).

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

515543412012 is a wasteful number, since it uses less digits than its factorization.

515543412012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4246609 (or 4246607 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 515543412012 its reverse (210214345515), we get a palindrome (725757757527).

The spelling of 515543412012 in words is "five hundred fifteen billion, five hundred forty-three million, four hundred twelve thousand, twelve".