613602643660 has 48 divisors (see below), whose sum is σ = 1302495667200. Its totient is φ = 242792904384.

The previous prime is 613602643651. The next prime is 613602643783. The reversal of 613602643660 is 66346206316.

It is a happy 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, 1731081 + ... + 2055199.

It is an arithmetic number, because the mean of its divisors is an integer number (27135326400).

Almost surely, 2^613602643660 is an apocalyptic number.

It is an amenable number.

613602643660 is an abundant number, since it is smaller than the sum of its proper divisors (688893023540).

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

613602643660 is a wasteful number, since it uses less digits than its factorization.

613602643660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325150 (or 325148 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 43.

Adding to 613602643660 its reverse (66346206316), we get a palindrome (679948849976).

The spelling of 613602643660 in words is "six hundred thirteen billion, six hundred two million, six hundred forty-three thousand, six hundred sixty".