655540456313 has 4 divisors (see below), whose sum is σ = 670785583248. Its totient is φ = 640295329380.

The previous prime is 655540456303. The next prime is 655540456327. The reversal of 655540456313 is 313654045556.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 655540456313 - 2²⁰ = 655539407737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655540456303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7622563403 + ... + 7622563488.

It is an arithmetic number, because the mean of its divisors is an integer number (167696395812).

Almost surely, 2^655540456313 is an apocalyptic number.

It is an amenable number.

655540456313 is a deficient number, since it is larger than the sum of its proper divisors (15245126935).

655540456313 is a wasteful number, since it uses less digits than its factorization.

655540456313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15245126934.

The product of its (nonzero) digits is 3240000, while the sum is 47.

The spelling of 655540456313 in words is "six hundred fifty-five billion, five hundred forty million, four hundred fifty-six thousand, three hundred thirteen".