118556641 has 8 divisors (see below), whose sum is σ = 135561600. Its totient is φ = 101568768.

The previous prime is 118556609. The next prime is 118556653. The reversal of 118556641 is 146655811.

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

It is not a de Polignac number, because 118556641 - 2⁵ = 118556609 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 118556641.

It is not an unprimeable number, because it can be changed into a prime (118556671) 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, 19260 + ... + 24658.

It is an arithmetic number, because the mean of its divisors is an integer number (16945200).

Almost surely, 2^118556641 is an apocalyptic number.

It is an amenable number.

118556641 is a deficient number, since it is larger than the sum of its proper divisors (17004959).

118556641 is an equidigital number, since it uses as much as digits as its factorization.

118556641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8543.

The product of its digits is 28800, while the sum is 37.

The square root of 118556641 is about 10888.3718250251. The cubic root of 118556641 is about 491.2568608313.

It can be divided in two parts, 11855 and 6641, that added together give a square (18496 = 136²).

The spelling of 118556641 in words is "one hundred eighteen million, five hundred fifty-six thousand, six hundred forty-one".