22171613425 has 24 divisors (see below), whose sum is σ = 29900820600. Its totient is φ = 16210752000.

The previous prime is 22171613407. The next prime is 22171613441. The reversal of 22171613425 is 52431617122.

It can be written as a sum of positive squares in 12 ways, for example, as 4092928576 + 18078684849 = 63976^2 + 134457^2 .

It is not a de Polignac number, because 22171613425 - 2⁷ = 22171613297 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 304900 + ... + 370549.

It is an arithmetic number, because the mean of its divisors is an integer number (1245867525).

Almost surely, 2^22171613425 is an apocalyptic number.

22171613425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22171613425 is a deficient number, since it is larger than the sum of its proper divisors (7729207175).

22171613425 is a wasteful number, since it uses less digits than its factorization.

22171613425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675573 (or 675568 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The spelling of 22171613425 in words is "twenty-two billion, one hundred seventy-one million, six hundred thirteen thousand, four hundred twenty-five".