6601968 has 90 divisors (see below), whose sum is σ = 19653504. Its totient is φ = 2068416.

The previous prime is 6601961. The next prime is 6601993. The reversal of 6601968 is 8691066.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6601961) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 51921 + ... + 52047.

Almost surely, 2^6601968 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 6601968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9826752).

6601968 is an abundant number, since it is smaller than the sum of its proper divisors (13051536).

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

6601968 is a wasteful number, since it uses less digits than its factorization.

6601968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 6601968 is about 2569.4295086653. The cubic root of 6601968 is about 187.5963877750.

It can be divided in two parts, 6601 and 968, that added together give a square (7569 = 87²).

The spelling of 6601968 in words is "six million, six hundred one thousand, nine hundred sixty-eight".