20559467079 has 12 divisors (see below), whose sum is σ = 30988182576. Its totient is φ = 13110384672.

The previous prime is 20559467077. The next prime is 20559467081. The reversal of 20559467079 is 97076495502.

20559467079 is a `hidden beast` number, since 20 + 559 + 4 + 67 + 0 + 7 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (20559467077) and next prime (20559467081).

It is not a de Polignac number, because 20559467079 - 2¹ = 20559467077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20559467077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49660342 + ... + 49660755.

It is an arithmetic number, because the mean of its divisors is an integer number (2582348548).

Almost surely, 2^20559467079 is an apocalyptic number.

20559467079 is a deficient number, since it is larger than the sum of its proper divisors (10428715497).

20559467079 is a wasteful number, since it uses less digits than its factorization.

20559467079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99321126 (or 99321123 counting only the distinct ones).

The product of its (nonzero) digits is 4762800, while the sum is 54.

The spelling of 20559467079 in words is "twenty billion, five hundred fifty-nine million, four hundred sixty-seven thousand, seventy-nine".