20010104145 has 24 divisors (see below), whose sum is σ = 34771577256. Its totient is φ = 10645164288.

The previous prime is 20010104123. The next prime is 20010104173. The reversal of 20010104145 is 54140101002.

It can be written as a sum of positive squares in 4 ways, for example, as 1082673216 + 18927430929 = 32904^2 + 137577^2 .

It is not a de Polignac number, because 20010104145 - 2¹⁹ = 20009579857 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 542172 + ... + 577901.

It is an arithmetic number, because the mean of its divisors is an integer number (1448815719).

Almost surely, 2^20010104145 is an apocalyptic number.

It is an amenable number.

20010104145 is a deficient number, since it is larger than the sum of its proper divisors (14761473111).

20010104145 is a wasteful number, since it uses less digits than its factorization.

20010104145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120481 (or 1120478 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 20010104145 its reverse (54140101002), we get a palindrome (74150205147).

The spelling of 20010104145 in words is "twenty billion, ten million, one hundred four thousand, one hundred forty-five".