20224797632 has 56 divisors (see below), whose sum is σ = 43298552976. Its totient is φ = 9317726208.

The previous prime is 20224797631. The next prime is 20224797683. The reversal of 20224797632 is 23679742202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20224797631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446828 + ... + 490004.

It is an arithmetic number, because the mean of its divisors is an integer number (773188446).

Almost surely, 2^20224797632 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 20224797632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21649276488).

20224797632 is an abundant number, since it is smaller than the sum of its proper divisors (23073755344).

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

20224797632 is a wasteful number, since it uses less digits than its factorization.

20224797632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43765 (or 43755 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 44.

The spelling of 20224797632 in words is "twenty billion, two hundred twenty-four million, seven hundred ninety-seven thousand, six hundred thirty-two".