65611056560 has 80 divisors (see below), whose sum is σ = 175668970752. Its totient is φ = 22323475200.

The previous prime is 65611056541. The next prime is 65611056647. The reversal of 65611056560 is 6565011656.

65611056560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373826 + ... + 520545.

Almost surely, 2^65611056560 is an apocalyptic number.

It is an amenable number.

65611056560 is an abundant number, since it is smaller than the sum of its proper divisors (110057914192).

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

65611056560 is a wasteful number, since it uses less digits than its factorization.

65611056560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894522 (or 894516 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 65611056560 in words is "sixty-five billion, six hundred eleven million, fifty-six thousand, five hundred sixty".