657675616 has 48 divisors (see below), whose sum is σ = 1455045984. Its totient is φ = 290340864.

The previous prime is 657675611. The next prime is 657675631. The reversal of 657675616 is 616576756.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 657675616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (657675611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24801 + ... + 43936.

It is an arithmetic number, because the mean of its divisors is an integer number (30313458).

Almost surely, 2^657675616 is an apocalyptic number.

It is an amenable number.

657675616 is an abundant number, since it is smaller than the sum of its proper divisors (797370368).

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

657675616 is a wasteful number, since it uses less digits than its factorization.

657675616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68783 (or 68775 counting only the distinct ones).

The product of its digits is 1587600, while the sum is 49.

The square root of 657675616 is about 25645.1869948339. The cubic root of 657675616 is about 869.6354733044.

The spelling of 657675616 in words is "six hundred fifty-seven million, six hundred seventy-five thousand, six hundred sixteen".