20122541632 has 56 divisors (see below), whose sum is σ = 40127529600. Its totient is φ = 10011810816.

The previous prime is 20122541627. The next prime is 20122541633. The reversal of 20122541632 is 23614522102.

It is a self number, because there is not a number n which added to its sum of digits gives 20122541632.

It is not an unprimeable number, because it can be changed into a prime (20122541633) 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 7 ways as a sum of consecutive naturals, for example, 21114468 + ... + 21115420.

Almost surely, 2^20122541632 is an apocalyptic number.

It is an amenable number.

20122541632 is a deficient number, since it is larger than the sum of its proper divisors (20004987968).

20122541632 is an equidigital number, since it uses as much as digits as its factorization.

20122541632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243 (or 2233 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 20122541632 in words is "twenty billion, one hundred twenty-two million, five hundred forty-one thousand, six hundred thirty-two".