22451020449 has 16 divisors (see below), whose sum is σ = 35168032704. Its totient is φ = 12560011200.

The previous prime is 22451020439. The next prime is 22451020453. The reversal of 22451020449 is 94402015422.

It is a happy number.

It is not a de Polignac number, because 22451020449 - 2⁴ = 22451020433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (22451020439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26166262 + ... + 26167119.

It is an arithmetic number, because the mean of its divisors is an integer number (2198002044).

Almost surely, 2^22451020449 is an apocalyptic number.

It is an amenable number.

22451020449 is a deficient number, since it is larger than the sum of its proper divisors (12717012255).

22451020449 is a wasteful number, since it uses less digits than its factorization.

22451020449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52333408.

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 22451020449 in words is "twenty-two billion, four hundred fifty-one million, twenty thousand, four hundred forty-nine".