666616065150 has 48 divisors (see below), whose sum is σ = 1889380393344. Its totient is φ = 152369386080.

The previous prime is 666616065149. The next prime is 666616065187. The reversal of 666616065150 is 51560616666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 666616065150.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 317435172 + ... + 317437271.

It is an arithmetic number, because the mean of its divisors is an integer number (39362091528).

Almost surely, 2^666616065150 is an apocalyptic number.

666616065150 is an abundant number, since it is smaller than the sum of its proper divisors (1222764328194).

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

666616065150 is a wasteful number, since it uses less digits than its factorization.

666616065150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634872465 (or 634872460 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 666616065150 in words is "six hundred sixty-six billion, six hundred sixteen million, sixty-five thousand, one hundred fifty".