655567545765556 has 24 divisors (see below), whose sum is σ = 1147342324325120. Its totient is φ = 327755454062400.

The previous prime is 655567545765527. The next prime is 655567545765599.

655567545765556 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×655567545765556² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 655567545765556.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4188557341 + ... + 4188713851.

Almost surely, 2^{655567545765556} is an apocalyptic number.

It is an amenable number.

655567545765556 is a deficient number, since it is larger than the sum of its proper divisors (491774778559564).

655567545765556 is a wasteful number, since it uses less digits than its factorization.

655567545765556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240295 (or 240293 counting only the distinct ones).

The product of its digits is 99225000000, while the sum is 82.

The spelling of 655567545765556 in words is "six hundred fifty-five trillion, five hundred sixty-seven billion, five hundred forty-five million, seven hundred sixty-five thousand, five hundred fifty-six".