20433037384720 has 40 divisors (see below), whose sum is σ = 47507588705880. Its totient is φ = 8173081313280.

The previous prime is 20433037384709. The next prime is 20433037384723. The reversal of 20433037384720 is 2748373033402.

It can be written as a sum of positive squares in 4 ways, for example, as 580808603664 + 19852228781056 = 762108^2 + 4455584^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (20433037384723) 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, 2909386 + ... + 7023574.

It is an arithmetic number, because the mean of its divisors is an integer number (1187689717647).

Almost surely, 2^{20433037384720} is an apocalyptic number.

20433037384720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20433037384720 is an abundant number, since it is smaller than the sum of its proper divisors (27074551321160).

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

20433037384720 is a wasteful number, since it uses less digits than its factorization.

20433037384720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4176283 (or 4176277 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 46.

The spelling of 20433037384720 in words is "twenty trillion, four hundred thirty-three billion, thirty-seven million, three hundred eighty-four thousand, seven hundred twenty".