20445024224245 has 16 divisors (see below), whose sum is σ = 24938165752560. Its totient is φ = 16086636633600.

The previous prime is 20445024224227. The next prime is 20445024224257. The reversal of 20445024224245 is 54242242054402.

It can be written as a sum of positive squares in 8 ways, for example, as 6992142678756 + 13452881545489 = 2644266^2 + 3667817^2 .

It is not a de Polignac number, because 20445024224245 - 2¹³ = 20445024216053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20445024224198 and 20445024224207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1330755 + ... + 6531535.

It is an arithmetic number, because the mean of its divisors is an integer number (1558635359535).

Almost surely, 2^{20445024224245} is an apocalyptic number.

It is an amenable number.

20445024224245 is a deficient number, since it is larger than the sum of its proper divisors (4493141528315).

20445024224245 is a wasteful number, since it uses less digits than its factorization.

20445024224245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5213736.

The product of its (nonzero) digits is 819200, while the sum is 40.

Adding to 20445024224245 its reverse (54242242054402), we get a palindrome (74687266278647).

The spelling of 20445024224245 in words is "twenty trillion, four hundred forty-five billion, twenty-four million, two hundred twenty-four thousand, two hundred forty-five".