20125480345424 has 20 divisors (see below), whose sum is σ = 39017173196820. Its totient is φ = 10056532423680.

The previous prime is 20125480345423. The next prime is 20125480345429. The reversal of 20125480345424 is 42454308452102.

It can be written as a sum of positive squares in 2 ways, for example, as 13253385870400 + 6872094475024 = 3640520^2 + 2621468^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20125480345423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387957569 + ... + 388009440.

It is an arithmetic number, because the mean of its divisors is an integer number (1950858659841).

Almost surely, 2^{20125480345424} is an apocalyptic number.

It is an amenable number.

20125480345424 is a deficient number, since it is larger than the sum of its proper divisors (18891692851396).

20125480345424 is a wasteful number, since it uses less digits than its factorization.

20125480345424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775968638 (or 775968632 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 44.

Adding to 20125480345424 its reverse (42454308452102), we get a palindrome (62579788797526).

The spelling of 20125480345424 in words is "twenty trillion, one hundred twenty-five billion, four hundred eighty million, three hundred forty-five thousand, four hundred twenty-four".