20153003344 has 40 divisors (see below), whose sum is σ = 39953190600. Its totient is φ = 9844723200.

The previous prime is 20153003341. The next prime is 20153003363. The reversal of 20153003344 is 44330035102.

It can be written as a sum of positive squares in 4 ways, for example, as 480135744 + 19672867600 = 21912^2 + 140260^2 .

It is a super-2 number, since 2×20153003344² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20153003341) 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, 76134 + ... + 214714.

It is an arithmetic number, because the mean of its divisors is an integer number (998829765).

Almost surely, 2^20153003344 is an apocalyptic number.

It is an amenable number.

20153003344 is a deficient number, since it is larger than the sum of its proper divisors (19800187256).

20153003344 is a wasteful number, since it uses less digits than its factorization.

20153003344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138799 (or 138793 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 20153003344 its reverse (44330035102), we get a palindrome (64483038446).

The spelling of 20153003344 in words is "twenty billion, one hundred fifty-three million, three thousand, three hundred forty-four".