505213645316 has 6 divisors (see below), whose sum is σ = 884123879310. Its totient is φ = 252606822656.

The previous prime is 505213645309. The next prime is 505213645333. The reversal of 505213645316 is 613546312505.

It can be written as a sum of positive squares in only one way, i.e., 318852208900 + 186361436416 = 564670^2 + 431696^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63151705661 + ... + 63151705668.

It is an arithmetic number, because the mean of its divisors is an integer number (147353979885).

Almost surely, 2^505213645316 is an apocalyptic number.

It is an amenable number.

505213645316 is a deficient number, since it is larger than the sum of its proper divisors (378910233994).

505213645316 is a wasteful number, since it uses less digits than its factorization.

505213645316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126303411333 (or 126303411331 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 505213645316 in words is "five hundred five billion, two hundred thirteen million, six hundred forty-five thousand, three hundred sixteen".