591015960655 has 4 divisors (see below), whose sum is σ = 709219152792. Its totient is φ = 472812768520.

The previous prime is 591015960653. The next prime is 591015960719. The reversal of 591015960655 is 556069510195.

591015960655 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, and also an emirpimes, since its reverse is a distinct semiprime: 556069510195 = 5 ⋅111213902039.

It is not a de Polignac number, because 591015960655 - 2¹ = 591015960653 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 (591015960653) 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, 59101596061 + ... + 59101596070.

It is an arithmetic number, because the mean of its divisors is an integer number (177304788198).

Almost surely, 2^591015960655 is an apocalyptic number.

591015960655 is a deficient number, since it is larger than the sum of its proper divisors (118203192137).

591015960655 is a wasteful number, since it uses less digits than its factorization.

591015960655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118203192136.

The product of its (nonzero) digits is 1822500, while the sum is 52.

The spelling of 591015960655 in words is "five hundred ninety-one billion, fifteen million, nine hundred sixty thousand, six hundred fifty-five".