551567668748505 has 16 divisors (see below), whose sum is σ = 882530577351360. Its totient is φ = 294161987547968.

The previous prime is 551567668748479. The next prime is 551567668748521. The reversal of 551567668748505 is 505847866765155.

It is a cyclic number.

It is not a de Polignac number, because 551567668748505 - 2¹³ = 551567668740313 is a prime.

It is a Smith number, since the sum of its digits (78) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 464123310 + ... + 465310199.

It is an arithmetic number, because the mean of its divisors is an integer number (55158161084460).

Almost surely, 2^{551567668748505} is an apocalyptic number.

It is an amenable number.

551567668748505 is a deficient number, since it is larger than the sum of its proper divisors (330962908602855).

551567668748505 is a wasteful number, since it uses less digits than its factorization.

551567668748505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929473080.

The product of its (nonzero) digits is 8467200000, while the sum is 78.

The spelling of 551567668748505 in words is "five hundred fifty-one trillion, five hundred sixty-seven billion, six hundred sixty-eight million, seven hundred forty-eight thousand, five hundred five".