655565207660 has 24 divisors (see below), whose sum is σ = 1501840294416. Its totient is φ = 238387348160.

The previous prime is 655565207623. The next prime is 655565207707. The reversal of 655565207660 is 66702565556.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1489920707 + ... + 1489921146.

It is an arithmetic number, because the mean of its divisors is an integer number (62576678934).

Almost surely, 2^655565207660 is an apocalyptic number.

It is an amenable number.

655565207660 is an abundant number, since it is smaller than the sum of its proper divisors (846275086756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

655565207660 is a wasteful number, since it uses less digits than its factorization.

655565207660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2979841873 (or 2979841871 counting only the distinct ones).

The product of its (nonzero) digits is 11340000, while the sum is 53.

The spelling of 655565207660 in words is "six hundred fifty-five billion, five hundred sixty-five million, two hundred seven thousand, six hundred sixty".