22162172448 has 144 divisors (see below), whose sum is σ = 64020075840. Its totient is φ = 6673211904.

The previous prime is 22162172443. The next prime is 22162172453. The reversal of 22162172448 is 84427126122.

It is an interprime number because it is at equal distance from previous prime (22162172443) and next prime (22162172453).

It is a super-2 number, since 2×22162172448² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (22162172443) 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 23 ways as a sum of consecutive naturals, for example, 2752813 + ... + 2760851.

It is an arithmetic number, because the mean of its divisors is an integer number (444583860).

Almost surely, 2^22162172448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22162172448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32010037920).

22162172448 is an abundant number, since it is smaller than the sum of its proper divisors (41857903392).

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

22162172448 is a wasteful number, since it uses less digits than its factorization.

22162172448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8159 (or 8104 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The spelling of 22162172448 in words is "twenty-two billion, one hundred sixty-two million, one hundred seventy-two thousand, four hundred forty-eight".