551668662 has 48 divisors (see below), whose sum is σ = 1249717248. Its totient is φ = 175546800.

The previous prime is 551668661. The next prime is 551668669. The reversal of 551668662 is 266866155.

It is a happy number.

551668662 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551668661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 281787 + ... + 283737.

It is an arithmetic number, because the mean of its divisors is an integer number (26035776).

Almost surely, 2^551668662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551668662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (624858624).

551668662 is an abundant number, since it is smaller than the sum of its proper divisors (698048586).

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

551668662 is a wasteful number, since it uses less digits than its factorization.

551668662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665 (or 2662 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 551668662 is about 23487.6278495722. The cubic root of 551668662 is about 820.1490220930.

The spelling of 551668662 in words is "five hundred fifty-one million, six hundred sixty-eight thousand, six hundred sixty-two".