551040340323 has 16 divisors (see below), whose sum is σ = 801538416000. Its totient is φ = 333953345280.

The previous prime is 551040340289. The next prime is 551040340343. The reversal of 551040340323 is 323043040155.

It is not a de Polignac number, because 551040340323 - 2²⁵ = 551006785891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551040340343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 877203 + ... + 1368051.

It is an arithmetic number, because the mean of its divisors is an integer number (50096151000).

Almost surely, 2^551040340323 is an apocalyptic number.

551040340323 is a deficient number, since it is larger than the sum of its proper divisors (250498075677).

551040340323 is a wasteful number, since it uses less digits than its factorization.

551040340323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524882.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 551040340323 its reverse (323043040155), we get a palindrome (874083380478).

The spelling of 551040340323 in words is "five hundred fifty-one billion, forty million, three hundred forty thousand, three hundred twenty-three".