20126330406724 has 12 divisors (see below), whose sum is σ = 35222323983084. Its totient is φ = 10062809268704.

The previous prime is 20126330406631. The next prime is 20126330406739. The reversal of 20126330406724 is 42760403362102.

It can be written as a sum of positive squares in 2 ways, for example, as 2423526605824 + 17702803800900 = 1556768^2 + 4207470^2 .

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, 88856419 + ... + 89082634.

It is an arithmetic number, because the mean of its divisors is an integer number (2935193665257).

Almost surely, 2^{20126330406724} is an apocalyptic number.

It is an amenable number.

20126330406724 is a deficient number, since it is larger than the sum of its proper divisors (15095993576360).

20126330406724 is a wasteful number, since it uses less digits than its factorization.

20126330406724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177967334 (or 177967332 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 40.

Adding to 20126330406724 its reverse (42760403362102), we get a palindrome (62886733768826).

The spelling of 20126330406724 in words is "twenty trillion, one hundred twenty-six billion, three hundred thirty million, four hundred six thousand, seven hundred twenty-four".