515066412644 has 12 divisors (see below), whose sum is σ = 1030132825344. Its totient is φ = 220742748264.

The previous prime is 515066412613. The next prime is 515066412667. The reversal of 515066412644 is 446214660515.

515066412644 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 515066412595 and 515066412604.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9197614484 + ... + 9197614539.

It is an arithmetic number, because the mean of its divisors is an integer number (85844402112).

Almost surely, 2^515066412644 is an apocalyptic number.

It is an amenable number.

515066412644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

515066412644 is a wasteful number, since it uses less digits than its factorization.

515066412644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18395229034 (or 18395229032 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 515066412644 in words is "five hundred fifteen billion, sixty-six million, four hundred twelve thousand, six hundred forty-four".