616513564 has 6 divisors (see below), whose sum is σ = 1078898744. Its totient is φ = 308256780.

The previous prime is 616513561. The next prime is 616513609. The reversal of 616513564 is 465315616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616513561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77064192 + ... + 77064199.

Almost surely, 2^616513564 is an apocalyptic number.

It is an amenable number.

616513564 is a deficient number, since it is larger than the sum of its proper divisors (462385180).

616513564 is a wasteful number, since it uses less digits than its factorization.

616513564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154128395 (or 154128393 counting only the distinct ones).

The product of its digits is 64800, while the sum is 37.

The square root of 616513564 is about 24829.6911781037. The cubic root of 616513564 is about 851.1005647050.

The spelling of 616513564 in words is "six hundred sixteen million, five hundred thirteen thousand, five hundred sixty-four".