20584163426 has 16 divisors (see below), whose sum is σ = 31467724344. Its totient is φ = 10095032064.

The previous prime is 20584163419. The next prime is 20584163443. The reversal of 20584163426 is 62436148502.

It can be written as a sum of positive squares in 4 ways, for example, as 20349307801 + 234855625 = 142651^2 + 15325^2 .

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, 376460 + ... + 427656.

Almost surely, 2^20584163426 is an apocalyptic number.

20584163426 is a deficient number, since it is larger than the sum of its proper divisors (10883560918).

20584163426 is a wasteful number, since it uses less digits than its factorization.

20584163426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55045.

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 20584163426 in words is "twenty billion, five hundred eighty-four million, one hundred sixty-three thousand, four hundred twenty-six".