668011036 has 24 divisors (see below), whose sum is σ = 1457479296. Its totient is φ = 260263920.

The previous prime is 668011031. The next prime is 668011037. The reversal of 668011036 is 630110866.

It is a junction number, because it is equal to n+sod(n) for n = 668010989 and 668011007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668011031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1084126 + ... + 1084741.

It is an arithmetic number, because the mean of its divisors is an integer number (60728304).

Almost surely, 2^668011036 is an apocalyptic number.

It is an amenable number.

668011036 is an abundant number, since it is smaller than the sum of its proper divisors (789468260).

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

668011036 is a wasteful number, since it uses less digits than its factorization.

668011036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2168889 (or 2168887 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 668011036 is about 25845.9094635882. The cubic root of 668011036 is about 874.1672778596.

The spelling of 668011036 in words is "six hundred sixty-eight million, eleven thousand, thirty-six".