551005150665 has 32 divisors (see below), whose sum is σ = 887260366080. Its totient is φ = 291991239936.

The previous prime is 551005150651. The next prime is 551005150721. The reversal of 551005150665 is 566051500155.

It is not a de Polignac number, because 551005150665 - 2⁶ = 551005150601 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1322004 + ... + 1688106.

It is an arithmetic number, because the mean of its divisors is an integer number (27726886440).

Almost surely, 2^551005150665 is an apocalyptic number.

It is an amenable number.

551005150665 is a deficient number, since it is larger than the sum of its proper divisors (336255215415).

551005150665 is a wasteful number, since it uses less digits than its factorization.

551005150665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366753.

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 551005150665 in words is "five hundred fifty-one billion, five million, one hundred fifty thousand, six hundred sixty-five".