118951641617 has 4 divisors (see below), whose sum is σ = 119288615460. Its totient is φ = 118614667776.

The previous prime is 118951641587. The next prime is 118951641649. The reversal of 118951641617 is 716146159811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45857652736 + 73093988881 = 214144^2 + 270359^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118951641617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118951641317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168486392 + ... + 168487097.

It is an arithmetic number, because the mean of its divisors is an integer number (29822153865).

Almost surely, 2^118951641617 is an apocalyptic number.

It is an amenable number.

118951641617 is a deficient number, since it is larger than the sum of its proper divisors (336973843).

118951641617 is an equidigital number, since it uses as much as digits as its factorization.

118951641617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336973842.

The product of its digits is 362880, while the sum is 50.

The spelling of 118951641617 in words is "one hundred eighteen billion, nine hundred fifty-one million, six hundred forty-one thousand, six hundred seventeen".