551599006465 has 8 divisors (see below), whose sum is σ = 712835639208. Its totient is φ = 407334650880.

The previous prime is 551599006457. The next prime is 551599006561. The reversal of 551599006465 is 564600995155.

It can be written as a sum of positive squares in 4 ways, for example, as 47294505729 + 504304500736 = 217473^2 + 710144^2 .

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

It is not a de Polignac number, because 551599006465 - 2³ = 551599006457 is a prime.

It is a super-3 number, since 3×551599006465³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4243069216 + ... + 4243069345.

It is an arithmetic number, because the mean of its divisors is an integer number (89104454901).

Almost surely, 2^551599006465 is an apocalyptic number.

It is an amenable number.

551599006465 is a deficient number, since it is larger than the sum of its proper divisors (161236632743).

551599006465 is a wasteful number, since it uses less digits than its factorization.

551599006465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8486138579.

The product of its (nonzero) digits is 7290000, while the sum is 55.

The spelling of 551599006465 in words is "five hundred fifty-one billion, five hundred ninety-nine million, six thousand, four hundred sixty-five".