16516666782 has 48 divisors (see below), whose sum is σ = 44616454272. Its totient is φ = 4290042960.

The previous prime is 16516666759. The next prime is 16516666787. The reversal of 16516666782 is 28766661561.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16516666787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5957008 + ... + 5959779.

It is an arithmetic number, because the mean of its divisors is an integer number (929509464).

Almost surely, 2^16516666782 is an apocalyptic number.

16516666782 is an abundant number, since it is smaller than the sum of its proper divisors (28099787490).

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

16516666782 is a wasteful number, since it uses less digits than its factorization.

16516666782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11916813 (or 11916810 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 16516666782 in words is "sixteen billion, five hundred sixteen million, six hundred sixty-six thousand, seven hundred eighty-two".