216118080 has 84 divisors (see below), whose sum is σ = 743366052. Its totient is φ = 57630720.

The previous prime is 216118061. The next prime is 216118099. The reversal of 216118080 is 80811612.

216118080 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (216118061) and next prime (216118099).

It can be written as a sum of positive squares in 2 ways, for example, as 145154304 + 70963776 = 12048^2 + 8424^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34641 + ... + 40400.

Almost surely, 2^216118080 is an apocalyptic number.

216118080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216118080 is an abundant number, since it is smaller than the sum of its proper divisors (527247972).

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

216118080 is a wasteful number, since it uses less digits than its factorization.

216118080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75064 (or 75051 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 216118080 is about 14700.9550710149. The cubic root of 216118080 is about 600.1093134164.

Adding to 216118080 its reverse (80811612), we get a palindrome (296929692).

The spelling of 216118080 in words is "two hundred sixteen million, one hundred eighteen thousand, eighty".