2118066450 has 48 divisors (see below), whose sum is σ = 5279275200. Its totient is φ = 561971520.

The previous prime is 2118066449. The next prime is 2118066487. The reversal of 2118066450 is 546608112.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5629 + ... + 65328.

It is an arithmetic number, because the mean of its divisors is an integer number (109984900).

Almost surely, 2^2118066450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2118066450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2639637600).

2118066450 is an abundant number, since it is smaller than the sum of its proper divisors (3161208750).

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

2118066450 is a wasteful number, since it uses less digits than its factorization.

2118066450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71171 (or 71166 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 2118066450 is about 46022.4559318600. The cubic root of 2118066450 is about 1284.2409886758.

The spelling of 2118066450 in words is "two billion, one hundred eighteen million, sixty-six thousand, four hundred fifty".