16716173477 has 2 divisors, whose sum is σ = 16716173478. Its totient is φ = 16716173476.

The previous prime is 16716173459. The next prime is 16716173497. The reversal of 16716173477 is 77437161761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14708595841 + 2007577636 = 121279^2 + 44806^2 .

It is a cyclic number.

It is not a de Polignac number, because 16716173477 - 2⁶ = 16716173413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16716173497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8358086738 + 8358086739.

It is an arithmetic number, because the mean of its divisors is an integer number (8358086739).

Almost surely, 2^16716173477 is an apocalyptic number.

It is an amenable number.

16716173477 is a deficient number, since it is larger than the sum of its proper divisors (1).

16716173477 is an equidigital number, since it uses as much as digits as its factorization.

16716173477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1037232, while the sum is 50.

The spelling of 16716173477 in words is "sixteen billion, seven hundred sixteen million, one hundred seventy-three thousand, four hundred seventy-seven".