20451025044360 has 96 divisors (see below), whose sum is σ = 66911910975000. Its totient is φ = 5417005277184.

The previous prime is 20451025044341. The next prime is 20451025044361. The reversal of 20451025044360 is 6344052015402.

20451025044360 is a `hidden beast` number, since 2 + 0 + 4 + 5 + 1 + 0 + 250 + 44 + 360 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 17734323353796 + 2716701690564 = 4211214^2 + 1648242^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (20451025044361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190578585 + ... + 190685864.

Almost surely, 2^{20451025044360} is an apocalyptic number.

20451025044360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20451025044360 is an abundant number, since it is smaller than the sum of its proper divisors (46460885930640).

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

20451025044360 is a wasteful number, since it uses less digits than its factorization.

20451025044360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381264615 (or 381264608 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 20451025044360 its reverse (6344052015402), we get a palindrome (26795077059762).

The spelling of 20451025044360 in words is "twenty trillion, four hundred fifty-one billion, twenty-five million, forty-four thousand, three hundred sixty".