551511726364416 has 144 divisors (see below), whose sum is σ = 1536734616600960. Its totient is φ = 175359495843840.

The previous prime is 551511726364367. The next prime is 551511726364447. The reversal of 551511726364416 is 614463627115155.

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, 147323470 + ... + 151020621.

It is an arithmetic number, because the mean of its divisors is an integer number (10671768170840).

Almost surely, 2^{551511726364416} is an apocalyptic number.

It is an amenable number.

551511726364416 is an abundant number, since it is smaller than the sum of its proper divisors (985222890236544).

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

551511726364416 is a wasteful number, since it uses less digits than its factorization.

551511726364416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298344222 (or 298344208 counting only the distinct ones).

The product of its digits is 18144000, while the sum is 57.

The spelling of 551511726364416 in words is "five hundred fifty-one trillion, five hundred eleven billion, seven hundred twenty-six million, three hundred sixty-four thousand, four hundred sixteen".