118415616 has 144 divisors (see below), whose sum is σ = 349671168. Its totient is φ = 35276800.

The previous prime is 118415611. The next prime is 118415617. The reversal of 118415616 is 616514811.

It is a super-2 number, since 2×118415616² = 28044516225318912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (118415611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 903871 + ... + 904001.

It is an arithmetic number, because the mean of its divisors is an integer number (2428272).

Almost surely, 2^118415616 is an apocalyptic number.

118415616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118415616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174835584).

118415616 is an abundant number, since it is smaller than the sum of its proper divisors (231255552).

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

118415616 is a wasteful number, since it uses less digits than its factorization.

118415616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 254 counting only the distinct ones).

The product of its digits is 5760, while the sum is 33.

The square root of 118415616 is about 10881.8939528007. The cubic root of 118415616 is about 491.0619976107.

The spelling of 118415616 in words is "one hundred eighteen million, four hundred fifteen thousand, six hundred sixteen".