551115116443 has 8 divisors (see below), whose sum is σ = 560473574400. Its totient is φ = 541757242728.

The previous prime is 551115116401. The next prime is 551115116449. The reversal of 551115116443 is 344611511155.

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 551115116443 - 2³³ = 542525181851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551115116449) 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, 2029230 + ... + 2284732.

It is an arithmetic number, because the mean of its divisors is an integer number (70059196800).

Almost surely, 2^551115116443 is an apocalyptic number.

551115116443 is a deficient number, since it is larger than the sum of its proper divisors (9358457957).

551115116443 is a wasteful number, since it uses less digits than its factorization.

551115116443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292121.

The product of its digits is 36000, while the sum is 37.

Adding to 551115116443 its reverse (344611511155), we get a palindrome (895726627598).

The spelling of 551115116443 in words is "five hundred fifty-one billion, one hundred fifteen million, one hundred sixteen thousand, four hundred forty-three".