16653061782794 has 8 divisors (see below), whose sum is σ = 25000118226468. Its totient is φ = 8319689040640.

The previous prime is 16653061782793. The next prime is 16653061782839. The reversal of 16653061782794 is 49728716035661.

It can be written as a sum of positive squares in 2 ways, for example, as 16364330731225 + 288731051569 = 4045285^2 + 537337^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 16653061782794.

It is not an unprimeable number, because it can be changed into a prime (16653061782793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3420922337 + ... + 3420927204.

It is a 1-persistent number, because it is pandigital, but 2⋅16653061782794 = 33306123565588 is not.

Almost surely, 2^{16653061782794} is an apocalyptic number.

16653061782794 is a deficient number, since it is larger than the sum of its proper divisors (8347056443674).

16653061782794 is a wasteful number, since it uses less digits than its factorization.

16653061782794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6841850760.

The product of its (nonzero) digits is 91445760, while the sum is 65.

The spelling of 16653061782794 in words is "sixteen trillion, six hundred fifty-three billion, sixty-one million, seven hundred eighty-two thousand, seven hundred ninety-four".