23220445532 has 24 divisors (see below), whose sum is σ = 41257786752. Its totient is φ = 11433407600.

The previous prime is 23220445531. The next prime is 23220445543. The reversal of 23220445532 is 23554402232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220445531) 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, 9194 + ... + 215697.

It is an arithmetic number, because the mean of its divisors is an integer number (1719074448).

Almost surely, 2^23220445532 is an apocalyptic number.

It is an amenable number.

23220445532 is a deficient number, since it is larger than the sum of its proper divisors (18037341220).

23220445532 is a wasteful number, since it uses less digits than its factorization.

23220445532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225289 (or 225287 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 32.

Adding to 23220445532 its reverse (23554402232), we get a palindrome (46774847764).

The spelling of 23220445532 in words is "twenty-three billion, two hundred twenty million, four hundred forty-five thousand, five hundred thirty-two".