20445010304402 has 16 divisors (see below), whose sum is σ = 30680690428440. Its totient is φ = 10218114431232.

The previous prime is 20445010304357. The next prime is 20445010304419. The reversal of 20445010304402 is 20440301054402.

It can be written as a sum of positive squares in 4 ways, for example, as 19410377529841 + 1034632774561 = 4405721^2 + 1017169^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44349224 + ... + 44807852.

Almost surely, 2^{20445010304402} is an apocalyptic number.

20445010304402 is a deficient number, since it is larger than the sum of its proper divisors (10235680124038).

20445010304402 is a wasteful number, since it uses less digits than its factorization.

20445010304402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468157.

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 20445010304402 its reverse (20440301054402), we get a palindrome (40885311358804).

The spelling of 20445010304402 in words is "twenty trillion, four hundred forty-five billion, ten million, three hundred four thousand, four hundred two".