550616665655 has 64 divisors (see below), whose sum is σ = 776643158016. Its totient is φ = 366992640000.

The previous prime is 550616665639. The next prime is 550616665657. The reversal of 550616665655 is 556566616055.

It is not a de Polignac number, because 550616665655 - 2⁴ = 550616665639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 550616665655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550616665657) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 60482834 + ... + 60491936.

It is an arithmetic number, because the mean of its divisors is an integer number (12135049344).

Almost surely, 2^550616665655 is an apocalyptic number.

550616665655 is a deficient number, since it is larger than the sum of its proper divisors (226026492361).

550616665655 is a wasteful number, since it uses less digits than its factorization.

550616665655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9528.

The product of its (nonzero) digits is 24300000, while the sum is 56.

The spelling of 550616665655 in words is "five hundred fifty billion, six hundred sixteen million, six hundred sixty-five thousand, six hundred fifty-five".