65675816 has 16 divisors (see below), whose sum is σ = 123832800. Its totient is φ = 32653744.

The previous prime is 65675801. The next prime is 65675821. The reversal of 65675816 is 61857656.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21500 + ... + 24363.

It is an arithmetic number, because the mean of its divisors is an integer number (7739550).

Almost surely, 2^65675816 is an apocalyptic number.

It is an amenable number.

65675816 is a deficient number, since it is larger than the sum of its proper divisors (58156984).

65675816 is a wasteful number, since it uses less digits than its factorization.

65675816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46048 (or 46044 counting only the distinct ones).

The product of its digits is 302400, while the sum is 44.

The square root of 65675816 is about 8104.0616976921. The cubic root of 65675816 is about 403.4612463785.

The spelling of 65675816 in words is "sixty-five million, six hundred seventy-five thousand, eight hundred sixteen".