20076618105 has 24 divisors (see below), whose sum is σ = 34805097288. Its totient is φ = 10705798656.

The previous prime is 20076618091. The next prime is 20076618151. The reversal of 20076618105 is 50181667002.

20076618105 is a `hidden beast` number, since 20 + 0 + 7 + 6 + 618 + 10 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 336649104 + 19739969001 = 18348^2 + 140499^2 .

It is not a de Polignac number, because 20076618105 - 2⁵ = 20076618073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20076618105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 274839 + ... + 340131.

It is an arithmetic number, because the mean of its divisors is an integer number (1450212387).

Almost surely, 2^20076618105 is an apocalyptic number.

It is an amenable number.

20076618105 is a deficient number, since it is larger than the sum of its proper divisors (14728479183).

20076618105 is a wasteful number, since it uses less digits than its factorization.

20076618105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72137 (or 72134 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 20076618105 in words is "twenty billion, seventy-six million, six hundred eighteen thousand, one hundred five".