55600665565 has 8 divisors (see below), whose sum is σ = 66812578560. Its totient is φ = 44419345872.

The previous prime is 55600665563. The next prime is 55600665587. The reversal of 55600665565 is 56556600655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55600665565 - 2¹ = 55600665563 is a prime.

It is a super-2 number, since 2×55600665565² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55600665563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7644325 + ... + 7651594.

It is an arithmetic number, because the mean of its divisors is an integer number (8351572320).

Almost surely, 2^55600665565 is an apocalyptic number.

It is an amenable number.

55600665565 is a deficient number, since it is larger than the sum of its proper divisors (11211912995).

55600665565 is a wasteful number, since it uses less digits than its factorization.

55600665565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15296651.

The product of its (nonzero) digits is 4050000, while the sum is 49.

The spelling of 55600665565 in words is "fifty-five billion, six hundred million, six hundred sixty-five thousand, five hundred sixty-five".