16654565040 has 40 divisors (see below), whose sum is σ = 51629152368. Its totient is φ = 4441217280.

The previous prime is 16654565021. The next prime is 16654565047. The reversal of 16654565040 is 4056545661.

16654565040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 16654564983 and 16654565001.

It is not an unprimeable number, because it can be changed into a prime (16654565047) 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 7 ways as a sum of consecutive naturals, for example, 34696771 + ... + 34697250.

Almost surely, 2^16654565040 is an apocalyptic number.

16654565040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16654565040 is an abundant number, since it is smaller than the sum of its proper divisors (34974587328).

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

16654565040 is a wasteful number, since it uses less digits than its factorization.

16654565040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69394037 (or 69394031 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 16654565040 in words is "sixteen billion, six hundred fifty-four million, five hundred sixty-five thousand, forty".