678552616 has 16 divisors (see below), whose sum is σ = 1454041440. Its totient is φ = 290808240.

The previous prime is 678552607. The next prime is 678552697. The reversal of 678552616 is 616255876.

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, 6058450 + ... + 6058561.

It is an arithmetic number, because the mean of its divisors is an integer number (90877590).

Almost surely, 2^678552616 is an apocalyptic number.

It is an amenable number.

678552616 is an abundant number, since it is smaller than the sum of its proper divisors (775488824).

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

678552616 is a wasteful number, since it uses less digits than its factorization.

678552616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12117024 (or 12117020 counting only the distinct ones).

The product of its digits is 604800, while the sum is 46.

The square root of 678552616 is about 26049.0425159928. The cubic root of 678552616 is about 878.7415793860.

The spelling of 678552616 in words is "six hundred seventy-eight million, five hundred fifty-two thousand, six hundred sixteen".