65913255583 has 18 divisors (see below), whose sum is σ = 78765696744. Its totient is φ = 54027872712.

The previous prime is 65913255533. The next prime is 65913255631. The reversal of 65913255583 is 38555231956.

It is a de Polignac number, because none of the positive numbers 2^k-65913255583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65913255583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65913255503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 15620848 + ... + 15625066.

Almost surely, 2^65913255583 is an apocalyptic number.

65913255583 is a deficient number, since it is larger than the sum of its proper divisors (12852441161).

65913255583 is an frugal number, since it uses more digits than its factorization.

65913255583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8491 (or 4249 counting only the distinct ones).

The product of its digits is 4860000, while the sum is 52.

The spelling of 65913255583 in words is "sixty-five billion, nine hundred thirteen million, two hundred fifty-five thousand, five hundred eighty-three".