655717700707 has 4 divisors (see below), whose sum is σ = 662083892080. Its totient is φ = 649351509336.

The previous prime is 655717700569. The next prime is 655717700711. The reversal of 655717700707 is 707007717556.

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 655717700707 - 2¹⁵ = 655717667939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655717700207) 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, 3183095532 + ... + 3183095737.

It is an arithmetic number, because the mean of its divisors is an integer number (165520973020).

Almost surely, 2^655717700707 is an apocalyptic number.

655717700707 is a deficient number, since it is larger than the sum of its proper divisors (6366191373).

655717700707 is a wasteful number, since it uses less digits than its factorization.

655717700707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6366191372.

The product of its (nonzero) digits is 2521050, while the sum is 52.

It can be divided in two parts, 6557 and 17700707, that added together give a square (17707264 = 4208²).

The spelling of 655717700707 in words is "six hundred fifty-five billion, seven hundred seventeen million, seven hundred thousand, seven hundred seven".