551412243320 has 64 divisors (see below), whose sum is σ = 1281079203840. Its totient is φ = 213386601600.

The previous prime is 551412243313. The next prime is 551412243373. The reversal of 551412243320 is 23342214155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4229915 + ... + 4358325.

It is an arithmetic number, because the mean of its divisors is an integer number (20016862560).

Almost surely, 2^551412243320 is an apocalyptic number.

It is an amenable number.

551412243320 is an abundant number, since it is smaller than the sum of its proper divisors (729666960520).

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

551412243320 is a wasteful number, since it uses less digits than its factorization.

551412243320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131916 (or 131912 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 551412243320 its reverse (23342214155), we get a palindrome (574754457475).

The spelling of 551412243320 in words is "five hundred fifty-one billion, four hundred twelve million, two hundred forty-three thousand, three hundred twenty".