16924842961 has 4 divisors (see below), whose sum is σ = 18226753972. Its totient is φ = 15622931952.

The previous prime is 16924842943. The next prime is 16924842989.

16924842961 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6071370561 + 10853472400 = 77919^2 + 104180^2 .

It is a cyclic number.

It is not a de Polignac number, because 16924842961 - 2¹³ = 16924834769 is a prime.

It is a super-2 number, since 2×16924842961² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16924842899 and 16924842908.

It is not an unprimeable number, because it can be changed into a prime (16924842911) 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 3 ways as a sum of consecutive naturals, for example, 650955486 + ... + 650955511.

It is an arithmetic number, because the mean of its divisors is an integer number (4556688493).

Almost surely, 2^16924842961 is an apocalyptic number.

It is an amenable number.

16924842961 is a deficient number, since it is larger than the sum of its proper divisors (1301911011).

16924842961 is a wasteful number, since it uses less digits than its factorization.

16924842961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301911010.

The product of its digits is 1492992, while the sum is 52.

The spelling of 16924842961 in words is "sixteen billion, nine hundred twenty-four million, eight hundred forty-two thousand, nine hundred sixty-one".