16656709682 has 8 divisors (see below), whose sum is σ = 24986247552. Its totient is φ = 8327960500.

The previous prime is 16656709681. The next prime is 16656709697. The reversal of 16656709682 is 28690765661.

It is a happy number.

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

It is a super-2 number, since 2×16656709682² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16656709681) 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, 141194 + ... + 230757.

It is an arithmetic number, because the mean of its divisors is an integer number (3123280944).

Almost surely, 2^16656709682 is an apocalyptic number.

16656709682 is a deficient number, since it is larger than the sum of its proper divisors (8329537870).

16656709682 is a wasteful number, since it uses less digits than its factorization.

16656709682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394344.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 16656709682 in words is "sixteen billion, six hundred fifty-six million, seven hundred nine thousand, six hundred eighty-two".