117666563725 has 6 divisors (see below), whose sum is σ = 145906539050. Its totient is φ = 94133250960.

The previous prime is 117666563713. The next prime is 117666563743. The reversal of 117666563725 is 527365666711.

It can be written as a sum of positive squares in 3 ways, for example, as 868716676 + 116797847049 = 29474^2 + 341757^2 .

It is not a de Polignac number, because 117666563725 - 2²¹ = 117664466573 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2353331250 + ... + 2353331299.

Almost surely, 2^117666563725 is an apocalyptic number.

It is an amenable number.

117666563725 is a deficient number, since it is larger than the sum of its proper divisors (28239975325).

117666563725 is an equidigital number, since it uses as much as digits as its factorization.

117666563725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4706662559 (or 4706662554 counting only the distinct ones).

The product of its digits is 9525600, while the sum is 55.

The spelling of 117666563725 in words is "one hundred seventeen billion, six hundred sixty-six million, five hundred sixty-three thousand, seven hundred twenty-five".