118911655 has 4 divisors (see below), whose sum is σ = 142693992. Its totient is φ = 95129320.

The previous prime is 118911649. The next prime is 118911677. The reversal of 118911655 is 556119811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 556119811 = 13 ⋅42778447.

It is not a de Polignac number, because 118911655 - 2⁵ = 118911623 is a prime.

It is a Duffinian number.

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, 11891161 + ... + 11891170.

It is an arithmetic number, because the mean of its divisors is an integer number (35673498).

Almost surely, 2^118911655 is an apocalyptic number.

118911655 is a deficient number, since it is larger than the sum of its proper divisors (23782337).

118911655 is an equidigital number, since it uses as much as digits as its factorization.

118911655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23782336.

The product of its digits is 10800, while the sum is 37.

The square root of 118911655 is about 10904.6620763782. The cubic root of 118911655 is about 491.7467230871.

The spelling of 118911655 in words is "one hundred eighteen million, nine hundred eleven thousand, six hundred fifty-five".