551330533234344 has 128 divisors (see below), whose sum is σ = 1429749866793600. Its totient is φ = 176955044152320.

The previous prime is 551330533234079. The next prime is 551330533234367. The reversal of 551330533234344 is 443432335033155.

It is a super-2 number, since 2×551330533234344² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 551330533234293 and 551330533234302.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6771314754 + ... + 6771396174.

It is an arithmetic number, because the mean of its divisors is an integer number (11169920834325).

Almost surely, 2^{551330533234344} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551330533234344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (714874933396800).

551330533234344 is an abundant number, since it is smaller than the sum of its proper divisors (878419333559256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551330533234344 is a wasteful number, since it uses less digits than its factorization.

551330533234344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107915 (or 107911 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 48.

Adding to 551330533234344 its reverse (443432335033155), we get a palindrome (994762868267499).

The spelling of 551330533234344 in words is "five hundred fifty-one trillion, three hundred thirty billion, five hundred thirty-three million, two hundred thirty-four thousand, three hundred forty-four".