613544665064 has 16 divisors (see below), whose sum is σ = 1155554977920. Its totient is φ = 305396670960.

The previous prime is 613544665057. The next prime is 613544665163. The reversal of 613544665064 is 460566445316.

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, 171955802 + ... + 171959369.

It is an arithmetic number, because the mean of its divisors is an integer number (72222186120).

Almost surely, 2^613544665064 is an apocalyptic number.

It is an amenable number.

613544665064 is a deficient number, since it is larger than the sum of its proper divisors (542010312856).

613544665064 is a wasteful number, since it uses less digits than its factorization.

613544665064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343915400 (or 343915396 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 50.

The spelling of 613544665064 in words is "six hundred thirteen billion, five hundred forty-four million, six hundred sixty-five thousand, sixty-four".