116166663605 has 4 divisors (see below), whose sum is σ = 139399996332. Its totient is φ = 92933330880.

The previous prime is 116166663589. The next prime is 116166663617. The reversal of 116166663605 is 506366661611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 506366661611 = 1307 ⋅387426673.

It can be written as a sum of positive squares in 2 ways, for example, as 26584976401 + 89581687204 = 163049^2 + 299302^2 .

It is not a de Polignac number, because 116166663605 - 2⁴ = 116166663589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 116166663605.

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, 11616666356 + ... + 11616666365.

It is an arithmetic number, because the mean of its divisors is an integer number (34849999083).

Almost surely, 2^116166663605 is an apocalyptic number.

It is an amenable number.

116166663605 is a deficient number, since it is larger than the sum of its proper divisors (23233332727).

116166663605 is an equidigital number, since it uses as much as digits as its factorization.

116166663605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23233332726.

The product of its (nonzero) digits is 699840, while the sum is 47.

The spelling of 116166663605 in words is "one hundred sixteen billion, one hundred sixty-six million, six hundred sixty-three thousand, six hundred five".