65528797583 has 4 divisors (see below), whose sum is σ = 66141216360. Its totient is φ = 64916378808.

The previous prime is 65528797531. The next prime is 65528797589. The reversal of 65528797583 is 38579782556.

65528797583 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65528797583 - 2¹⁶ = 65528732047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65528797589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306209228 + ... + 306209441.

It is an arithmetic number, because the mean of its divisors is an integer number (16535304090).

Almost surely, 2^65528797583 is an apocalyptic number.

65528797583 is a deficient number, since it is larger than the sum of its proper divisors (612418777).

65528797583 is a wasteful number, since it uses less digits than its factorization.

65528797583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612418776.

The product of its digits is 127008000, while the sum is 65.

The spelling of 65528797583 in words is "sixty-five billion, five hundred twenty-eight million, seven hundred ninety-seven thousand, five hundred eighty-three".