65712560 has 40 divisors (see below), whose sum is σ = 157716096. Its totient is φ = 25436160.

The previous prime is 65712547. The next prime is 65712571. The reversal of 65712560 is 6521756.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10769 + ... + 15728.

Almost surely, 2^65712560 is an apocalyptic number.

It is an amenable number.

65712560 is an abundant number, since it is smaller than the sum of its proper divisors (92003536).

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

65712560 is a wasteful number, since it uses less digits than its factorization.

With its successor (65712561) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (26535).

65712560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26541 (or 26535 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 65712560 is about 8106.3283920651. The cubic root of 65712560 is about 403.5364745579.

The spelling of 65712560 in words is "sixty-five million, seven hundred twelve thousand, five hundred sixty".