2118580002 has 128 divisors (see below), whose sum is σ = 6125137920. Its totient is φ = 526331520.

The previous prime is 2118579977. The next prime is 2118580019. The reversal of 2118580002 is 2000858112.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 84558 + ... + 106710.

It is an arithmetic number, because the mean of its divisors is an integer number (47852640).

Almost surely, 2^2118580002 is an apocalyptic number.

2118580002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2118580002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3062568960).

2118580002 is an abundant number, since it is smaller than the sum of its proper divisors (4006557918).

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

2118580002 is a wasteful number, since it uses less digits than its factorization.

2118580002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22205 (or 22199 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 2118580002 is about 46028.0349569694. The cubic root of 2118580002 is about 1284.3447737785.

The spelling of 2118580002 in words is "two billion, one hundred eighteen million, five hundred eighty thousand, two".