118931661061 has 8 divisors (see below), whose sum is σ = 122066298648. Its totient is φ = 115808160000.

The previous prime is 118931661053. The next prime is 118931661067. The reversal of 118931661061 is 160166139811.

It can be written as a sum of positive squares in 4 ways, for example, as 110124036 + 118821537025 = 10494^2 + 344705^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 118931661061 - 2³ = 118931661053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 118931660999 and 118931661017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118931661067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2762490 + ... + 2805211.

It is an arithmetic number, because the mean of its divisors is an integer number (15258287331).

Almost surely, 2^118931661061 is an apocalyptic number.

It is an amenable number.

118931661061 is a deficient number, since it is larger than the sum of its proper divisors (3134637587).

118931661061 is an equidigital number, since it uses as much as digits as its factorization.

118931661061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5568263.

The product of its (nonzero) digits is 46656, while the sum is 43.

The spelling of 118931661061 in words is "one hundred eighteen billion, nine hundred thirty-one million, six hundred sixty-one thousand, sixty-one".