20524445345 has 16 divisors (see below), whose sum is σ = 25399578240. Its totient is φ = 15913900800.

The previous prime is 20524445317. The next prime is 20524445353. The reversal of 20524445345 is 54354442502.

It is not a de Polignac number, because 20524445345 - 2⁶ = 20524445281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20524445299 and 20524445308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469016 + ... + 510905.

It is an arithmetic number, because the mean of its divisors is an integer number (1587473640).

Almost surely, 2^20524445345 is an apocalyptic number.

It is an amenable number.

20524445345 is a deficient number, since it is larger than the sum of its proper divisors (4875132895).

20524445345 is an equidigital number, since it uses as much as digits as its factorization.

20524445345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980056.

The product of its (nonzero) digits is 384000, while the sum is 38.

Adding to 20524445345 its reverse (54354442502), we get a palindrome (74878887847).

The spelling of 20524445345 in words is "twenty billion, five hundred twenty-four million, four hundred forty-five thousand, three hundred forty-five".