20704703360 has 128 divisors (see below), whose sum is σ = 54331205760. Its totient is φ = 7482378240.

The previous prime is 20704703333. The next prime is 20704703377. The reversal of 20704703360 is 6330740702.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1138499 + ... + 1156541.

It is an arithmetic number, because the mean of its divisors is an integer number (424462545).

Almost surely, 2^20704703360 is an apocalyptic number.

20704703360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20704703360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27165602880).

20704703360 is an abundant number, since it is smaller than the sum of its proper divisors (33626502400).

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

20704703360 is a wasteful number, since it uses less digits than its factorization.

20704703360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18236 (or 18224 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 32.

The spelling of 20704703360 in words is "twenty billion, seven hundred four million, seven hundred three thousand, three hundred sixty".