551705372167 has 4 divisors (see below), whose sum is σ = 551707307920. Its totient is φ = 551703436416.

The previous prime is 551705372147. The next prime is 551705372177. The reversal of 551705372167 is 761273507155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 551705372167 - 2¹¹ = 551705370119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 551705372167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551705372147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446883 + ... + 1141540.

It is an arithmetic number, because the mean of its divisors is an integer number (137926826980).

Almost surely, 2^551705372167 is an apocalyptic number.

551705372167 is a deficient number, since it is larger than the sum of its proper divisors (1935753).

551705372167 is a wasteful number, since it uses less digits than its factorization.

551705372167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935752.

The product of its (nonzero) digits is 1543500, while the sum is 49.

The spelling of 551705372167 in words is "five hundred fifty-one billion, seven hundred five million, three hundred seventy-two thousand, one hundred sixty-seven".