116501156665666 has 8 divisors (see below), whose sum is σ = 177616517539644. Its totient is φ = 57295650819120.

The previous prime is 116501156665609. The next prime is 116501156665667. The reversal of 116501156665666 is 666566651105611.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 94309755565041 + 22191401100625 = 9711321^2 + 4710775^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is not an unprimeable number, because it can be changed into a prime (116501156665667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477463756705 + ... + 477463756948.

Almost surely, 2^{116501156665666} is an apocalyptic number.

116501156665666 is a deficient number, since it is larger than the sum of its proper divisors (61115360873978).

116501156665666 is an equidigital number, since it uses as much as digits as its factorization.

116501156665666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954927513716.

The product of its (nonzero) digits is 34992000, while the sum is 61.

The spelling of 116501156665666 in words is "one hundred sixteen trillion, five hundred one billion, one hundred fifty-six million, six hundred sixty-five thousand, six hundred sixty-six".