33145440020 has 96 divisors (see below), whose sum is σ = 88076298240. Its totient is φ = 10176819840.

The previous prime is 33145440019. The next prime is 33145440023. The reversal of 33145440020 is 2004454133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33145440023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57440 + ... + 263799.

It is an arithmetic number, because the mean of its divisors is an integer number (917461440).

Almost surely, 2^33145440020 is an apocalyptic number.

It is an amenable number.

33145440020 is an abundant number, since it is smaller than the sum of its proper divisors (54930858220).

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

33145440020 is a wasteful number, since it uses less digits than its factorization.

33145440020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321333 (or 321331 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 33145440020 its reverse (2004454133), we get a palindrome (35149894153).

The spelling of 33145440020 in words is "thirty-three billion, one hundred forty-five million, four hundred forty thousand, twenty".