551546145120143 has 8 divisors (see below), whose sum is σ = 551796125392512. Its totient is φ = 551296170749016.

The previous prime is 551546145120137. The next prime is 551546145120161. The reversal of 551546145120143 is 341021541645155.

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 551546145120143 - 2²⁸ = 551545876684687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551546145120193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191188496 + ... + 194051882.

It is an arithmetic number, because the mean of its divisors is an integer number (68974515674064).

Almost surely, 2^{551546145120143} is an apocalyptic number.

551546145120143 is a deficient number, since it is larger than the sum of its proper divisors (249980272369).

551546145120143 is a wasteful number, since it uses less digits than its factorization.

551546145120143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2950621.

The product of its (nonzero) digits is 1440000, while the sum is 47.

Adding to 551546145120143 its reverse (341021541645155), we get a palindrome (892567686765298).

The spelling of 551546145120143 in words is "five hundred fifty-one trillion, five hundred forty-six billion, one hundred forty-five million, one hundred twenty thousand, one hundred forty-three".