665016216152 has 16 divisors (see below), whose sum is σ = 1251757181160. Its totient is φ = 331214301184.

The previous prime is 665016216113. The next prime is 665016216197. The reversal of 665016216152 is 251612610566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161723678 + ... + 161727789.

Almost surely, 2^665016216152 is an apocalyptic number.

It is an amenable number.

665016216152 is a deficient number, since it is larger than the sum of its proper divisors (586740965008).

665016216152 is a wasteful number, since it uses less digits than its factorization.

665016216152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323451730 (or 323451726 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 665016216152 in words is "six hundred sixty-five billion, sixteen million, two hundred sixteen thousand, one hundred fifty-two".