20445231630562 has 8 divisors (see below), whose sum is σ = 30667868800092. Its totient is φ = 10222608697200.

The previous prime is 20445231630547. The next prime is 20445231630667. The reversal of 20445231630562 is 26503613254402.

It can be written as a sum of positive squares in 2 ways, for example, as 18645633527481 + 1799598103081 = 4318059^2 + 1341491^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1430112 + ... + 6552532.

Almost surely, 2^{20445231630562} is an apocalyptic number.

20445231630562 is a deficient number, since it is larger than the sum of its proper divisors (10222637169530).

20445231630562 is a wasteful number, since it uses less digits than its factorization.

20445231630562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7118084.

The product of its (nonzero) digits is 1036800, while the sum is 43.

Adding to 20445231630562 its reverse (26503613254402), we get a palindrome (46948844884964).

The spelling of 20445231630562 in words is "twenty trillion, four hundred forty-five billion, two hundred thirty-one million, six hundred thirty thousand, five hundred sixty-two".