65871016 has 8 divisors (see below), whose sum is σ = 123508170. Its totient is φ = 32935504.

The previous prime is 65871007. The next prime is 65871049. The reversal of 65871016 is 61017856.

It can be written as a sum of positive squares in only one way, i.e., 46104100 + 19766916 = 6790^2 + 4446^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4116931 + ... + 4116946.

Almost surely, 2^65871016 is an apocalyptic number.

It is an amenable number.

65871016 is a deficient number, since it is larger than the sum of its proper divisors (57637154).

65871016 is a wasteful number, since it uses less digits than its factorization.

65871016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8233883 (or 8233879 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 65871016 is about 8116.0961058874. The cubic root of 65871016 is about 403.8605701251.

The spelling of 65871016 in words is "sixty-five million, eight hundred seventy-one thousand, sixteen".