20016564402244 has 12 divisors (see below), whose sum is σ = 35043337982268. Its totient is φ = 10004182121600.

The previous prime is 20016564402217. The next prime is 20016564402253. The reversal of 20016564402244 is 44220446561002.

It can be written as a sum of positive squares in 2 ways, for example, as 4637131560000 + 15379432842244 = 2153400^2 + 3921662^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20016564402197 and 20016564402206.

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, 1025008897 + ... + 1025028424.

It is an arithmetic number, because the mean of its divisors is an integer number (2920278165189).

Almost surely, 2^{20016564402244} is an apocalyptic number.

It is an amenable number.

20016564402244 is a deficient number, since it is larger than the sum of its proper divisors (15026773580024).

20016564402244 is a wasteful number, since it uses less digits than its factorization.

20016564402244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050039766 (or 2050039764 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 40.

The spelling of 20016564402244 in words is "twenty trillion, sixteen billion, five hundred sixty-four million, four hundred two thousand, two hundred forty-four".