22485717072 has 320 divisors, whose sum is σ = 82003640320. Its totient is φ = 5738688000.

The previous prime is 22485717013. The next prime is 22485717077. The reversal of 22485717072 is 27071758422.

22485717072 is a `hidden beast` number, since 2 + 2 + 4 + 8 + 571 + 7 + 0 + 72 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22485717077) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1209447 + ... + 1227897.

It is an arithmetic number, because the mean of its divisors is an integer number (256261376).

Almost surely, 2^22485717072 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 22485717072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41001820160).

22485717072 is an abundant number, since it is smaller than the sum of its proper divisors (59517923248).

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

22485717072 is a wasteful number, since it uses less digits than its factorization.

22485717072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18519 (or 18507 counting only the distinct ones).

The product of its (nonzero) digits is 439040, while the sum is 45.

The spelling of 22485717072 in words is "twenty-two billion, four hundred eighty-five million, seven hundred seventeen thousand, seventy-two".