2215431160 has 64 divisors (see below), whose sum is σ = 5555757600. Its totient is φ = 790142976.

The previous prime is 2215431149. The next prime is 2215431161. The reversal of 2215431160 is 611345122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215431161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72817 + ... + 98656.

Almost surely, 2^2215431160 is an apocalyptic number.

2215431160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2215431160 is an abundant number, since it is smaller than the sum of its proper divisors (3340326440).

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

2215431160 is a wasteful number, since it uses less digits than its factorization.

2215431160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171520 (or 171516 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2215431160 is about 47068.3668720299. The cubic root of 2215431160 is about 1303.6252184894.

Adding to 2215431160 its reverse (611345122), we get a palindrome (2826776282).

The spelling of 2215431160 in words is "two billion, two hundred fifteen million, four hundred thirty-one thousand, one hundred sixty".