16798532477 has 2 divisors, whose sum is σ = 16798532478. Its totient is φ = 16798532476.

The previous prime is 16798532437. The next prime is 16798532483. The reversal of 16798532477 is 77423589761.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9807733156 + 6990799321 = 99034^2 + 83611^2 .

It is a cyclic number.

It is not a de Polignac number, because 16798532477 - 2⁸ = 16798532221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16798532437) 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, 8399266238 + 8399266239.

It is an arithmetic number, because the mean of its divisors is an integer number (8399266239).

Almost surely, 2^16798532477 is an apocalyptic number.

It is an amenable number.

16798532477 is a deficient number, since it is larger than the sum of its proper divisors (1).

16798532477 is an equidigital number, since it uses as much as digits as its factorization.

16798532477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17781120, while the sum is 59.

The spelling of 16798532477 in words is "sixteen billion, seven hundred ninety-eight million, five hundred thirty-two thousand, four hundred seventy-seven".