16418806560 has 144 divisors (see below), whose sum is σ = 60339182904. Its totient is φ = 4041547776.

The previous prime is 16418806529. The next prime is 16418806571. The reversal of 16418806560 is 6560881461.

16418806560 is a `hidden beast` number, since 1 + 6 + 4 + 1 + 8 + 80 + 6 + 560 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8939324304 + 7479482256 = 94548^2 + 86484^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 419817 + ... + 457256.

Almost surely, 2^16418806560 is an apocalyptic number.

16418806560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16418806560 is an abundant number, since it is smaller than the sum of its proper divisors (43920376344).

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

16418806560 is a wasteful number, since it uses less digits than its factorization.

16418806560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877107 (or 877096 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 16418806560 in words is "sixteen billion, four hundred eighteen million, eight hundred six thousand, five hundred sixty".