551063142666 has 24 divisors (see below), whose sum is σ = 1193984637924. Its totient is φ = 183685484160.

The previous prime is 551063142659. The next prime is 551063142683. The reversal of 551063142666 is 666241360155.

It can be written as a sum of positive squares in 2 ways, for example, as 528972563025 + 22090579641 = 727305^2 + 148629^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2093676 + ... + 2342136.

Almost surely, 2^551063142666 is an apocalyptic number.

551063142666 is an abundant number, since it is smaller than the sum of its proper divisors (642921495258).

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

551063142666 is a wasteful number, since it uses less digits than its factorization.

551063142666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371686 (or 371683 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 551063142666 in words is "five hundred fifty-one billion, sixty-three million, one hundred forty-two thousand, six hundred sixty-six".