665103012 has 48 divisors (see below), whose sum is σ = 1790208000. Its totient is φ = 188250912.

The previous prime is 665102993. The next prime is 665103013. The reversal of 665103012 is 210301566.

It is not an unprimeable number, because it can be changed into a prime (665103013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28012 + ... + 45987.

It is an arithmetic number, because the mean of its divisors is an integer number (37296000).

Almost surely, 2^665103012 is an apocalyptic number.

It is an amenable number.

665103012 is an abundant number, since it is smaller than the sum of its proper divisors (1125104988).

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

665103012 is a wasteful number, since it uses less digits than its factorization.

665103012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74120 (or 74118 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 665103012 is about 25789.5911561234. The cubic root of 665103012 is about 872.8969409747.

Adding to 665103012 its reverse (210301566), we get a palindrome (875404578).

The spelling of 665103012 in words is "six hundred sixty-five million, one hundred three thousand, twelve".