613664043223620 has 24 divisors (see below), whose sum is σ = 1718259321026304. Its totient is φ = 163643744859616.

The previous prime is 613664043223613. The next prime is 613664043223657. The reversal of 613664043223620 is 26322340466316.

613664043223620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 613664043223620.

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, 5113867026804 + ... + 5113867026923.

It is an arithmetic number, because the mean of its divisors is an integer number (71594138376096).

Almost surely, 2^{613664043223620} is an apocalyptic number.

613664043223620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

613664043223620 is an abundant number, since it is smaller than the sum of its proper divisors (1104595277802684).

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

613664043223620 is a wasteful number, since it uses less digits than its factorization.

613664043223620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10227734053739 (or 10227734053737 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 48.

Adding to 613664043223620 its reverse (26322340466316), we get a palindrome (639986383689936).

The spelling of 613664043223620 in words is "six hundred thirteen trillion, six hundred sixty-four billion, forty-three million, two hundred twenty-three thousand, six hundred twenty".