20025203402320 has 40 divisors (see below), whose sum is σ = 46566321473160. Its totient is φ = 8008752576000.

The previous prime is 20025203402233. The next prime is 20025203402341. The reversal of 20025203402320 is 2320430252002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1956786917904 + 18068416484416 = 1398852^2 + 4250696^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20276931 + ... + 21241570.

It is an arithmetic number, because the mean of its divisors is an integer number (1164158036829).

Almost surely, 2^{20025203402320} is an apocalyptic number.

20025203402320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20025203402320 is an abundant number, since it is smaller than the sum of its proper divisors (26541118070840).

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

20025203402320 is a wasteful number, since it uses less digits than its factorization.

20025203402320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41524543 (or 41524537 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 20025203402320 its reverse (2320430252002), we get a palindrome (22345633654322).

The spelling of 20025203402320 in words is "twenty trillion, twenty-five billion, two hundred three million, four hundred two thousand, three hundred twenty".