118721905208 has 32 divisors (see below), whose sum is σ = 225016047360. Its totient is φ = 58718716800.

The previous prime is 118721905207. The next prime is 118721905243. The reversal of 118721905208 is 802509127811.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118721905207) 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, 810710 + ... + 945882.

It is an arithmetic number, because the mean of its divisors is an integer number (7031751480).

Almost surely, 2^118721905208 is an apocalyptic number.

It is an amenable number.

118721905208 is a deficient number, since it is larger than the sum of its proper divisors (106294142152).

118721905208 is a wasteful number, since it uses less digits than its factorization.

118721905208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136367 (or 136363 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 44.

The spelling of 118721905208 in words is "one hundred eighteen billion, seven hundred twenty-one million, nine hundred five thousand, two hundred eight".