1659320117316 has 27 divisors (see below), whose sum is σ = 4194412055743. Its totient is φ = 553104129480.

The previous prime is 1659320117297. The next prime is 1659320117381. The reversal of 1659320117316 is 6137110239561.

The square root of 1659320117316 is 1288146.

It is a perfect power (a square), and thus also a powerful number.

1659320117316 is a `hidden beast` number, since 1 + 6 + 5 + 9 + 320 + 1 + 1 + 7 + 316 = 666.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7621531 + ... + 7836221.

Almost surely, 2^{1659320117316} is an apocalyptic number.

1659320117316 is the 1288146-th square number.

It is an amenable number.

1659320117316 is an abundant number, since it is smaller than the sum of its proper divisors (2535091938427).

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

1659320117316 is an frugal number, since it uses more digits than its factorization.

1659320117316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429392 (or 214696 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The spelling of 1659320117316 in words is "one trillion, six hundred fifty-nine billion, three hundred twenty million, one hundred seventeen thousand, three hundred sixteen".