20047557160 has 64 divisors (see below), whose sum is σ = 47731265280. Its totient is φ = 7562311680.

The previous prime is 20047557149. The next prime is 20047557161. The reversal of 20047557160 is 6175574002.

It is not an unprimeable number, because it can be changed into a prime (20047557161) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 88137 + ... + 218776.

It is an arithmetic number, because the mean of its divisors is an integer number (745801020).

Almost surely, 2^20047557160 is an apocalyptic number.

20047557160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20047557160 is an abundant number, since it is smaller than the sum of its proper divisors (27683708120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20047557160 is a wasteful number, since it uses less digits than its factorization.

20047557160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307018 (or 307014 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 37.

The spelling of 20047557160 in words is "twenty billion, forty-seven million, five hundred fifty-seven thousand, one hundred sixty".