551105666 has 8 divisors (see below), whose sum is σ = 840669840. Its totient is φ = 270882388.

The previous prime is 551105663. The next prime is 551105669. The reversal of 551105666 is 666501155.

It is an interprime number because it is at equal distance from previous prime (551105663) and next prime (551105669).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (551105663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2335076 + ... + 2335311.

It is an arithmetic number, because the mean of its divisors is an integer number (105083730).

Almost surely, 2^551105666 is an apocalyptic number.

551105666 is a deficient number, since it is larger than the sum of its proper divisors (289564174).

551105666 is a wasteful number, since it uses less digits than its factorization.

551105666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4670448.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 551105666 is about 23475.6398421853. The cubic root of 551105666 is about 819.8699307872.

The spelling of 551105666 in words is "five hundred fifty-one million, one hundred five thousand, six hundred sixty-six".