2118532580 has 24 divisors (see below), whose sum is σ = 4449876480. Its totient is φ = 847230560.

The previous prime is 2118532573. The next prime is 2118532597. The reversal of 2118532580 is 852358112.

It is a self number, because there is not a number n which added to its sum of digits gives 2118532580.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121661 + ... + 137979.

It is an arithmetic number, because the mean of its divisors is an integer number (185411520).

Almost surely, 2^2118532580 is an apocalyptic number.

2118532580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2118532580 is an abundant number, since it is smaller than the sum of its proper divisors (2331343900).

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

2118532580 is a wasteful number, since it uses less digits than its factorization.

2118532580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22819 (or 22817 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 2118532580 is about 46027.5198115215. The cubic root of 2118532580 is about 1284.3351908421.

It can be divided in two parts, 2118532 and 580, that added together give a palindrome (2119112).

The spelling of 2118532580 in words is "two billion, one hundred eighteen million, five hundred thirty-two thousand, five hundred eighty".