2155422416 has 40 divisors (see below), whose sum is σ = 4820001024. Its totient is φ = 914601600.

The previous prime is 2155422413. The next prime is 2155422421. The reversal of 2155422416 is 6142245512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155422413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83960 + ... + 106583.

Almost surely, 2^2155422416 is an apocalyptic number.

It is an amenable number.

2155422416 is an abundant number, since it is smaller than the sum of its proper divisors (2664578608).

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

2155422416 is a wasteful number, since it uses less digits than its factorization.

2155422416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190659 (or 190653 counting only the distinct ones).

The product of its digits is 19200, while the sum is 32.

The square root of 2155422416 is about 46426.5270723538. The cubic root of 2155422416 is about 1291.7470102467.

Adding to 2155422416 its reverse (6142245512), we get a palindrome (8297667928).

The spelling of 2155422416 in words is "two billion, one hundred fifty-five million, four hundred twenty-two thousand, four hundred sixteen".