16715666741 has 2 divisors, whose sum is σ = 16715666742. Its totient is φ = 16715666740.

The previous prime is 16715666719. The next prime is 16715666743. The reversal of 16715666741 is 14766651761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9867442225 + 6848224516 = 99335^2 + 82754^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16715666741 is a prime.

It is a super-2 number, since 2×16715666741² (a number of 21 digits) contains 22 as substring.

Together with 16715666743, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16715666741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16715666743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8357833370 + 8357833371.

It is an arithmetic number, because the mean of its divisors is an integer number (8357833371).

Almost surely, 2^16715666741 is an apocalyptic number.

It is an amenable number.

16715666741 is a deficient number, since it is larger than the sum of its proper divisors (1).

16715666741 is an equidigital number, since it uses as much as digits as its factorization.

16715666741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 50.

The spelling of 16715666741 in words is "sixteen billion, seven hundred fifteen million, six hundred sixty-six thousand, seven hundred forty-one".