16566230233440 has 96 divisors (see below), whose sum is σ = 57981805832160. Its totient is φ = 4417661394432.

The previous prime is 16566230233403. The next prime is 16566230233451. The reversal of 16566230233440 is 4433203266561.

16566230233440 is a `hidden beast` number, since 1 + 6 + 5 + 6 + 6 + 2 + 302 + 334 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1917383439 + ... + 1917392078.

It is an arithmetic number, because the mean of its divisors is an integer number (603977144085).

Almost surely, 2^{16566230233440} is an apocalyptic number.

16566230233440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16566230233440 is an abundant number, since it is smaller than the sum of its proper divisors (41415575598720).

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

16566230233440 is a wasteful number, since it uses less digits than its factorization.

16566230233440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3834775541 (or 3834775527 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 45.

The spelling of 16566230233440 in words is "sixteen trillion, five hundred sixty-six billion, two hundred thirty million, two hundred thirty-three thousand, four hundred forty".