20459347160 has 32 divisors (see below), whose sum is σ = 52609750560. Its totient is φ = 7014633216.

The previous prime is 20459347151. The next prime is 20459347177. The reversal of 20459347160 is 6174395402.

It is a congruent number.

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, 36534269 + ... + 36534828.

It is an arithmetic number, because the mean of its divisors is an integer number (1644054705).

Almost surely, 2^20459347160 is an apocalyptic number.

20459347160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20459347160 is an abundant number, since it is smaller than the sum of its proper divisors (32150403400).

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

20459347160 is a wasteful number, since it uses less digits than its factorization.

20459347160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73069115 (or 73069111 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 20459347160 in words is "twenty billion, four hundred fifty-nine million, three hundred forty-seven thousand, one hundred sixty".