16784461157 has 2 divisors, whose sum is σ = 16784461158. Its totient is φ = 16784461156.

The previous prime is 16784461153. The next prime is 16784461181. The reversal of 16784461157 is 75116448761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14643178081 + 2141283076 = 121009^2 + 46274^2 .

It is a cyclic number.

It is not a de Polignac number, because 16784461157 - 2² = 16784461153 is a prime.

It is a super-3 number, since 3×16784461157³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16784461153) 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 as a sum of consecutive naturals, namely, 8392230578 + 8392230579.

It is an arithmetic number, because the mean of its divisors is an integer number (8392230579).

Almost surely, 2^16784461157 is an apocalyptic number.

It is an amenable number.

16784461157 is a deficient number, since it is larger than the sum of its proper divisors (1).

16784461157 is an equidigital number, since it uses as much as digits as its factorization.

16784461157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1128960, while the sum is 50.

The spelling of 16784461157 in words is "sixteen billion, seven hundred eighty-four million, four hundred sixty-one thousand, one hundred fifty-seven".