118161888 has 96 divisors (see below), whose sum is σ = 338871456. Its totient is φ = 35831808.

The previous prime is 118161881. The next prime is 118161907. The reversal of 118161888 is 888161811.

It is a tau number, because it is divible by the number of its divisors (96).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118161881) 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, 90456 + ... + 91752.

It is an arithmetic number, because the mean of its divisors is an integer number (3529911).

Almost surely, 2^118161888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118161888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169435728).

118161888 is an abundant number, since it is smaller than the sum of its proper divisors (220709568).

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

118161888 is a wasteful number, since it uses less digits than its factorization.

118161888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396 (or 1388 counting only the distinct ones).

The product of its digits is 24576, while the sum is 42.

The square root of 118161888 is about 10870.2294364011. The cubic root of 118161888 is about 490.7110155382.

The spelling of 118161888 in words is "one hundred eighteen million, one hundred sixty-one thousand, eight hundred eighty-eight".