6622450452 has 18 divisors (see below), whose sum is σ = 16740083178. Its totient is φ = 2207483472.

The previous prime is 6622450451. The next prime is 6622450459. The reversal of 6622450452 is 2540542266.

It can be written as a sum of positive squares in only one way, i.e., 3477932676 + 3144517776 = 58974^2 + 56076^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 183956957 = 6622450452 / (6 + 6 + 2 + 2 + 4 + 5 + 0 + 4 + 5 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6622450451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 91978443 + ... + 91978514.

It is an arithmetic number, because the mean of its divisors is an integer number (930004621).

Almost surely, 2^6622450452 is an apocalyptic number.

It is an amenable number.

6622450452 is an abundant number, since it is smaller than the sum of its proper divisors (10117632726).

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

6622450452 is a wasteful number, since it uses less digits than its factorization.

6622450452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183956967 (or 183956962 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The square root of 6622450452 is about 81378.4397245364. The cubic root of 6622450452 is about 1877.9019196363.

The spelling of 6622450452 in words is "six billion, six hundred twenty-two million, four hundred fifty thousand, four hundred fifty-two".