515643663643199 has 48 divisors (see below), whose sum is σ = 646692254208000. Its totient is φ = 407526508138176.

The previous prime is 515643663643187. The next prime is 515643663643259. The reversal of 515643663643199 is 991346366346515.

It is not a de Polignac number, because 515643663643199 - 2⁴⁴ = 498051477598783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515643663643139) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4571293202 + ... + 4571406000.

It is an arithmetic number, because the mean of its divisors is an integer number (13472755296000).

Almost surely, 2^{515643663643199} is an apocalyptic number.

515643663643199 is a deficient number, since it is larger than the sum of its proper divisors (131048590564801).

515643663643199 is a wasteful number, since it uses less digits than its factorization.

515643663643199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120772 (or 120765 counting only the distinct ones).

The product of its digits is 1133740800, while the sum is 71.

The spelling of 515643663643199 in words is "five hundred fifteen trillion, six hundred forty-three billion, six hundred sixty-three million, six hundred forty-three thousand, one hundred ninety-nine".