555050066565 has 16 divisors (see below), whose sum is σ = 890058024000. Its totient is φ = 295367396352.

The previous prime is 555050066561. The next prime is 555050066647. The reversal of 555050066565 is 565660050555.

It is not a de Polignac number, because 555050066565 - 2² = 555050066561 is a prime.

It is a super-3 number, since 3×555050066565³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555050066561) 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 15 ways as a sum of consecutive naturals, for example, 41199655 + ... + 41213124.

It is an arithmetic number, because the mean of its divisors is an integer number (55628626500).

Almost surely, 2^555050066565 is an apocalyptic number.

It is an amenable number.

555050066565 is a deficient number, since it is larger than the sum of its proper divisors (335007957435).

555050066565 is a wasteful number, since it uses less digits than its factorization.

555050066565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82413236.

The product of its (nonzero) digits is 3375000, while the sum is 48.

The spelling of 555050066565 in words is "five hundred fifty-five billion, fifty million, sixty-six thousand, five hundred sixty-five".