65205258688 has 56 divisors (see below), whose sum is σ = 130263477344. Its totient is φ = 32383411200.

The previous prime is 65205258653. The next prime is 65205258689. The reversal of 65205258688 is 88685250256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65205258689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11198818 + ... + 11204638.

It is an arithmetic number, because the mean of its divisors is an integer number (2326133524).

Almost surely, 2^65205258688 is an apocalyptic number.

It is an amenable number.

65205258688 is a deficient number, since it is larger than the sum of its proper divisors (65058218656).

65205258688 is a wasteful number, since it uses less digits than its factorization.

65205258688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6981 (or 6971 counting only the distinct ones).

The product of its (nonzero) digits is 9216000, while the sum is 55.

The spelling of 65205258688 in words is "sixty-five billion, two hundred five million, two hundred fifty-eight thousand, six hundred eighty-eight".