665017016468 has 24 divisors (see below), whose sum is σ = 1330051296000. Its totient is φ = 285003593568.

The previous prime is 665017016467. The next prime is 665017016479. The reversal of 665017016468 is 864610710566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665017016467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4165013 + ... + 4321731.

It is an arithmetic number, because the mean of its divisors is an integer number (55418804000).

Almost surely, 2^665017016468 is an apocalyptic number.

It is an amenable number.

665017016468 is an abundant number, since it is smaller than the sum of its proper divisors (665034279532).

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

665017016468 is a wasteful number, since it uses less digits than its factorization.

665017016468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308279 (or 308277 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 665017016468 in words is "six hundred sixty-five billion, seventeen million, sixteen thousand, four hundred sixty-eight".