20476924168 has 16 divisors (see below), whose sum is σ = 38395887660. Its totient is φ = 10238020800.

The previous prime is 20476924163. The next prime is 20476924187. The reversal of 20476924168 is 86142967402.

It can be written as a sum of positive squares in 2 ways, for example, as 20312520484 + 164403684 = 142522^2 + 12822^2 .

It is not an unprimeable number, because it can be changed into a prime (20476924163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226878 + ... + 304018.

Almost surely, 2^20476924168 is an apocalyptic number.

It is an amenable number.

20476924168 is a deficient number, since it is larger than the sum of its proper divisors (17918963492).

20476924168 is a wasteful number, since it uses less digits than its factorization.

20476924168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110328 (or 110324 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 20476924168 in words is "twenty billion, four hundred seventy-six million, nine hundred twenty-four thousand, one hundred sixty-eight".