215114411140 has 12 divisors (see below), whose sum is σ = 451740263436. Its totient is φ = 86045764448.

The previous prime is 215114411137. The next prime is 215114411167. The reversal of 215114411140 is 41114411512.

It can be written as a sum of positive squares in 2 ways, for example, as 150190351936 + 64924059204 = 387544^2 + 254802^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5377860259 + ... + 5377860298.

It is an arithmetic number, because the mean of its divisors is an integer number (37645021953).

Almost surely, 2^215114411140 is an apocalyptic number.

215114411140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215114411140 is an abundant number, since it is smaller than the sum of its proper divisors (236625852296).

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

215114411140 is a wasteful number, since it uses less digits than its factorization.

215114411140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10755720566 (or 10755720564 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 25.

Adding to 215114411140 its reverse (41114411512), we get a palindrome (256228822652).

The spelling of 215114411140 in words is "two hundred fifteen billion, one hundred fourteen million, four hundred eleven thousand, one hundred forty".