618103668 has 192 divisors, whose sum is σ = 1930772480. Its totient is φ = 149454720.

The previous prime is 618103657. The next prime is 618103693. The reversal of 618103668 is 866301816.

618103668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19938813 + ... + 19938843.

Almost surely, 2^618103668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 618103668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (965386240).

618103668 is an abundant number, since it is smaller than the sum of its proper divisors (1312668812).

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

618103668 is a wasteful number, since it uses less digits than its factorization.

618103668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 618103668 is about 24861.6907711443. The cubic root of 618103668 is about 851.8316524708.

The spelling of 618103668 in words is "six hundred eighteen million, one hundred three thousand, six hundred sixty-eight".