551651160605 has 4 divisors (see below), whose sum is σ = 661981392732. Its totient is φ = 441320928480.

The previous prime is 551651160581. The next prime is 551651160611. The reversal of 551651160605 is 506061156155.

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

It can be written as a sum of positive squares in 2 ways, for example, as 73830128089 + 477821032516 = 271717^2 + 691246^2 .

It is not a de Polignac number, because 551651160605 - 2⁸ = 551651160349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 55165116056 + ... + 55165116065.

It is an arithmetic number, because the mean of its divisors is an integer number (165495348183).

Almost surely, 2^551651160605 is an apocalyptic number.

It is an amenable number.

551651160605 is a deficient number, since it is larger than the sum of its proper divisors (110330232127).

551651160605 is a wasteful number, since it uses less digits than its factorization.

551651160605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110330232126.

The product of its (nonzero) digits is 135000, while the sum is 41.

It can be divided in two parts, 551 and 651160605, that added together give a palindrome (651161156).

The spelling of 551651160605 in words is "five hundred fifty-one billion, six hundred fifty-one million, one hundred sixty thousand, six hundred five".