16706672024657 has 2 divisors, whose sum is σ = 16706672024658. Its totient is φ = 16706672024656.

The previous prime is 16706672024633. The next prime is 16706672024683. The reversal of 16706672024657 is 75642027660761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16702620829456 + 4051195201 = 4086884^2 + 63649^2 .

It is a cyclic number.

It is not a de Polignac number, because 16706672024657 - 2²⁰ = 16706670976081 is a prime.

It is a super-2 number, since 2×16706672024657² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16706672024596 and 16706672024605.

It is not a weakly prime, because it can be changed into another prime (16706672024257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8353336012328 + 8353336012329.

It is an arithmetic number, because the mean of its divisors is an integer number (8353336012329).

Almost surely, 2^{16706672024657} is an apocalyptic number.

It is an amenable number.

16706672024657 is a deficient number, since it is larger than the sum of its proper divisors (1).

16706672024657 is an equidigital number, since it uses as much as digits as its factorization.

16706672024657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35562240, while the sum is 59.

The spelling of 16706672024657 in words is "sixteen trillion, seven hundred six billion, six hundred seventy-two million, twenty-four thousand, six hundred fifty-seven".