16646362040 has 96 divisors (see below), whose sum is σ = 47050143840. Its totient is φ = 5188465920.

The previous prime is 16646362037. The next prime is 16646362069. The reversal of 16646362040 is 4026364661.

It is a happy number.

16646362040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 16646361985 and 16646362003.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 211787 + ... + 279546.

It is an arithmetic number, because the mean of its divisors is an integer number (490105665).

Almost surely, 2^16646362040 is an apocalyptic number.

16646362040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16646362040 is an abundant number, since it is smaller than the sum of its proper divisors (30403781800).

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

16646362040 is a wasteful number, since it uses less digits than its factorization.

16646362040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491373 (or 491358 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 16646362040 in words is "sixteen billion, six hundred forty-six million, three hundred sixty-two thousand, forty".