16725477677 has 2 divisors, whose sum is σ = 16725477678. Its totient is φ = 16725477676.

The previous prime is 16725477673. The next prime is 16725477679. The reversal of 16725477677 is 77677452761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13524294436 + 3201183241 = 116294^2 + 56579^2 .

It is an emirp because it is prime and its reverse (77677452761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16725477677 - 2² = 16725477673 is a prime.

Together with 16725477679, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16725477673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8362738838 + 8362738839.

It is an arithmetic number, because the mean of its divisors is an integer number (8362738839).

Almost surely, 2^16725477677 is an apocalyptic number.

It is an amenable number.

16725477677 is a deficient number, since it is larger than the sum of its proper divisors (1).

16725477677 is an equidigital number, since it uses as much as digits as its factorization.

16725477677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24202080, while the sum is 59.

The spelling of 16725477677 in words is "sixteen billion, seven hundred twenty-five million, four hundred seventy-seven thousand, six hundred seventy-seven".