665434357116 has 24 divisors (see below), whose sum is σ = 1552696866000. Its totient is φ = 221809066752.

The previous prime is 665434357103. The next prime is 665434357127. The reversal of 665434357116 is 611753434566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1142410 + ... + 1623566.

It is an arithmetic number, because the mean of its divisors is an integer number (64695702750).

Almost surely, 2^665434357116 is an apocalyptic number.

It is an amenable number.

665434357116 is an abundant number, since it is smaller than the sum of its proper divisors (887262508884).

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

665434357116 is a wasteful number, since it uses less digits than its factorization.

665434357116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596413 (or 596411 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 51.

The spelling of 665434357116 in words is "six hundred sixty-five billion, four hundred thirty-four million, three hundred fifty-seven thousand, one hundred sixteen".