20416152406436 has 24 divisors (see below), whose sum is σ = 36096326306040. Its totient is φ = 10102996512000.

The previous prime is 20416152406379. The next prime is 20416152406453. The reversal of 20416152406436 is 63460425161402.

It can be written as a sum of positive squares in 4 ways, for example, as 5151737825536 + 15264414580900 = 2269744^2 + 3906970^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

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, 9004331 + ... + 11041298.

It is an arithmetic number, because the mean of its divisors is an integer number (1504013596085).

Almost surely, 2^{20416152406436} is an apocalyptic number.

It is an amenable number.

20416152406436 is a deficient number, since it is larger than the sum of its proper divisors (15680173899604).

20416152406436 is a wasteful number, since it uses less digits than its factorization.

20416152406436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20048255 (or 20048253 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 44.

Adding to 20416152406436 its reverse (63460425161402), we get a palindrome (83876577567838).

The spelling of 20416152406436 in words is "twenty trillion, four hundred sixteen billion, one hundred fifty-two million, four hundred six thousand, four hundred thirty-six".