20433144360 has 128 divisors (see below), whose sum is σ = 62478345600. Its totient is φ = 5345049600.

The previous prime is 20433144337. The next prime is 20433144367. The reversal of 20433144360 is 6344133402.

It is a super-3 number, since 3×20433144360³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (20433144367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1313347 + ... + 1328813.

It is an arithmetic number, because the mean of its divisors is an integer number (488112075).

Almost surely, 2^20433144360 is an apocalyptic number.

20433144360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20433144360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31239172800).

20433144360 is an abundant number, since it is smaller than the sum of its proper divisors (42045201240).

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

20433144360 is a wasteful number, since it uses less digits than its factorization.

20433144360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15691 (or 15687 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 20433144360 its reverse (6344133402), we get a palindrome (26777277762).

The spelling of 20433144360 in words is "twenty billion, four hundred thirty-three million, one hundred forty-four thousand, three hundred sixty".