551005560565 has 8 divisors (see below), whose sum is σ = 661994766720. Its totient is φ = 440279052432.

The previous prime is 551005560557. The next prime is 551005560587. The reversal of 551005560565 is 565065500155.

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 551005560565 - 2³ = 551005560557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65669889 + ... + 65678278.

It is an arithmetic number, because the mean of its divisors is an integer number (82749345840).

Almost surely, 2^551005560565 is an apocalyptic number.

It is an amenable number.

551005560565 is a deficient number, since it is larger than the sum of its proper divisors (110989206155).

551005560565 is a wasteful number, since it uses less digits than its factorization.

551005560565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131349011.

The product of its (nonzero) digits is 562500, while the sum is 43.

The spelling of 551005560565 in words is "five hundred fifty-one billion, five million, five hundred sixty thousand, five hundred sixty-five".