22051462656 has 160 divisors (see below), whose sum is σ = 61252329600. Its totient is φ = 7040983040.

The previous prime is 22051462639. The next prime is 22051462669. The reversal of 22051462656 is 65626415022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5833375 + ... + 5837153.

It is an arithmetic number, because the mean of its divisors is an integer number (382827060).

Almost surely, 2^22051462656 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 22051462656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30626164800).

22051462656 is an abundant number, since it is smaller than the sum of its proper divisors (39200866944).

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

22051462656 is a wasteful number, since it uses less digits than its factorization.

22051462656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3960 (or 3944 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

Adding to 22051462656 its reverse (65626415022), we get a palindrome (87677877678).

The spelling of 22051462656 in words is "twenty-two billion, fifty-one million, four hundred sixty-two thousand, six hundred fifty-six".