118722816 has 81 divisors (see below), whose sum is σ = 343821751. Its totient is φ = 39399936.

The previous prime is 118722797. The next prime is 118722817. The reversal of 118722816 is 618227811.

The square root of 118722816 is 10896.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118722817) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 522895 + ... + 523121.

Almost surely, 2^118722816 is an apocalyptic number.

118722816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

118722816 is the 10896-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118722816

118722816 is an abundant number, since it is smaller than the sum of its proper divisors (225098935).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118722816 is an frugal number, since it uses more digits than its factorization.

118722816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 232 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The cubic root of 118722816 is about 491.4862771867.

Multiplying 118722816 by its sum of digits (36), we get a square (4274021376 = 65376²).

118722816 divided by its sum of digits (36) gives a square (3297856 = 1816²).

The spelling of 118722816 in words is "one hundred eighteen million, seven hundred twenty-two thousand, eight hundred sixteen".