3551608668 has 48 divisors (see below), whose sum is σ = 8727707520. Its totient is φ = 1120987584.

The previous prime is 3551608661. The next prime is 3551608679. The reversal of 3551608668 is 8668061553.

It is a super-2 number, since 2×3551608668² = 25227848261225468448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3551608661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 788230 + ... + 792722.

It is an arithmetic number, because the mean of its divisors is an integer number (181827240).

Almost surely, 2^3551608668 is an apocalyptic number.

3551608668 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3551608668 is an abundant number, since it is smaller than the sum of its proper divisors (5176098852).

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

3551608668 is a wasteful number, since it uses less digits than its factorization.

3551608668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7986 (or 7984 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

The square root of 3551608668 is about 59595.3745520573. The cubic root of 3551608668 is about 1525.7206903371.

The spelling of 3551608668 in words is "three billion, five hundred fifty-one million, six hundred eight thousand, six hundred sixty-eight".