20133412544 has 56 divisors (see below), whose sum is σ = 45688788480. Its totient is φ = 8623109376.

The previous prime is 20133412543. The next prime is 20133412553. The reversal of 20133412544 is 44521433102.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (20133412543) 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, 733337 + ... + 760295.

Almost surely, 2^20133412544 is an apocalyptic number.

It is an amenable number.

20133412544 is an abundant number, since it is smaller than the sum of its proper divisors (25555375936).

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

20133412544 is a wasteful number, since it uses less digits than its factorization.

20133412544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28645 (or 28635 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 20133412544 its reverse (44521433102), we get a palindrome (64654845646).

The spelling of 20133412544 in words is "twenty billion, one hundred thirty-three million, four hundred twelve thousand, five hundred forty-four".