551331244241144 has 16 divisors (see below), whose sum is σ = 1033756421602920. Its totient is φ = 275662865147040.

The previous prime is 551331244241143. The next prime is 551331244241179. The reversal of 551331244241144 is 441142442133155.

It is a super-2 number, since 2×551331244241144² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 551331244241095 and 551331244241104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551331244241143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343771667 + ... + 345371714.

Almost surely, 2^{551331244241144} is an apocalyptic number.

It is an amenable number.

551331244241144 is a deficient number, since it is larger than the sum of its proper divisors (482425177361776).

551331244241144 is a wasteful number, since it uses less digits than its factorization.

551331244241144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689243390 (or 689243386 counting only the distinct ones).

The product of its digits is 921600, while the sum is 44.

Adding to 551331244241144 its reverse (441142442133155), we get a palindrome (992473686374299).

The spelling of 551331244241144 in words is "five hundred fifty-one trillion, three hundred thirty-one billion, two hundred forty-four million, two hundred forty-one thousand, one hundred forty-four".