20235153224 has 64 divisors (see below), whose sum is σ = 44651355840. Its totient is φ = 8475528960.

The previous prime is 20235153199. The next prime is 20235153229. The reversal of 20235153224 is 42235153202.

It is a super-2 number, since 2×20235153224² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20235153229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 656462 + ... + 686594.

It is an arithmetic number, because the mean of its divisors is an integer number (697677435).

Almost surely, 2^20235153224 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 20235153224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22325677920).

20235153224 is an abundant number, since it is smaller than the sum of its proper divisors (24416202616).

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

20235153224 is a wasteful number, since it uses less digits than its factorization.

20235153224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30750 (or 30746 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The spelling of 20235153224 in words is "twenty billion, two hundred thirty-five million, one hundred fifty-three thousand, two hundred twenty-four".