16459986682 has 4 divisors (see below), whose sum is σ = 24689980026. Its totient is φ = 8229993340.

The previous prime is 16459986677. The next prime is 16459986689. The reversal of 16459986682 is 28668995461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28668995461 = 15053 ⋅1904537.

It can be written as a sum of positive squares in only one way, i.e., 15762551401 + 697435281 = 125549^2 + 26409^2 .

It is not an unprimeable number, because it can be changed into a prime (16459986689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4114996669 + ... + 4114996672.

Almost surely, 2^16459986682 is an apocalyptic number.

16459986682 is a deficient number, since it is larger than the sum of its proper divisors (8229993344).

16459986682 is an equidigital number, since it uses as much as digits as its factorization.

16459986682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8229993343.

The product of its digits is 44789760, while the sum is 64.

The spelling of 16459986682 in words is "sixteen billion, four hundred fifty-nine million, nine hundred eighty-six thousand, six hundred eighty-two".