2118160920 has 32 divisors (see below), whose sum is σ = 6354483120. Its totient is φ = 564842880.

The previous prime is 2118160909. The next prime is 2118160927. The reversal of 2118160920 is 290618112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118160927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8825551 + ... + 8825790.

Almost surely, 2^2118160920 is an apocalyptic number.

2118160920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2118160920 is an abundant number, since it is smaller than the sum of its proper divisors (4236322200).

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

2118160920 is a wasteful number, since it uses less digits than its factorization.

2118160920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17651355 (or 17651351 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 2118160920 is about 46023.4822672079. The cubic root of 2118160920 is about 1284.2600816309.

The spelling of 2118160920 in words is "two billion, one hundred eighteen million, one hundred sixty thousand, nine hundred twenty".