65205258700 has 72 divisors (see below), whose sum is σ = 144384227568. Its totient is φ = 25551102720.

The previous prime is 65205258691. The next prime is 65205258749. The reversal of 65205258700 is 785250256.

65205258700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3610894 + ... + 3628906.

It is an arithmetic number, because the mean of its divisors is an integer number (2005336494).

Almost surely, 2^65205258700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65205258700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72192113784).

65205258700 is an abundant number, since it is smaller than the sum of its proper divisors (79178968868).

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

65205258700 is a wasteful number, since it uses less digits than its factorization.

65205258700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18763 (or 18756 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 65205258700 in words is "sixty-five billion, two hundred five million, two hundred fifty-eight thousand, seven hundred".