551105134212 has 12 divisors (see below), whose sum is σ = 1285911979856. Its totient is φ = 183701711400.

The previous prime is 551105134171. The next prime is 551105134231. The reversal of 551105134212 is 212431501155.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 551105134212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22962713914 + ... + 22962713937.

Almost surely, 2^551105134212 is an apocalyptic number.

It is an amenable number.

551105134212 is an abundant number, since it is smaller than the sum of its proper divisors (734806845644).

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

551105134212 is a wasteful number, since it uses less digits than its factorization.

551105134212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45925427858 (or 45925427856 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

Adding to 551105134212 its reverse (212431501155), we get a palindrome (763536635367).

The spelling of 551105134212 in words is "five hundred fifty-one billion, one hundred five million, one hundred thirty-four thousand, two hundred twelve".