662111968 has 48 divisors (see below), whose sum is σ = 1495549440. Its totient is φ = 282658176.

The previous prime is 662111959. The next prime is 662111969. The reversal of 662111968 is 869111266.

662111968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 662111968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662111969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53293 + ... + 64531.

It is an arithmetic number, because the mean of its divisors is an integer number (31157280).

Almost surely, 2^662111968 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 662111968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (747774720).

662111968 is an abundant number, since it is smaller than the sum of its proper divisors (833437472).

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

662111968 is a wasteful number, since it uses less digits than its factorization.

662111968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11519 (or 11511 counting only the distinct ones).

The product of its digits is 31104, while the sum is 40.

The square root of 662111968 is about 25731.5364484906. The cubic root of 662111968 is about 871.5864689043.

The spelling of 662111968 in words is "six hundred sixty-two million, one hundred eleven thousand, nine hundred sixty-eight".