16720560288 has 72 divisors (see below), whose sum is σ = 47852083188. Its totient is φ = 5538004992.

The previous prime is 16720560287. The next prime is 16720560313. The reversal of 16720560288 is 88206502761.

16720560288 is a `hidden beast` number, since 1 + 6 + 7 + 2 + 0 + 560 + 2 + 88 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16699875984 + 20684304 = 129228^2 + 4548^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (16720560287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139681 + ... + 230112.

Almost surely, 2^16720560288 is an apocalyptic number.

16720560288 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16720560288 is an abundant number, since it is smaller than the sum of its proper divisors (31131522900).

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

16720560288 is a wasteful number, since it uses less digits than its factorization.

16720560288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369966 (or 369955 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 16720560288 in words is "sixteen billion, seven hundred twenty million, five hundred sixty thousand, two hundred eighty-eight".