16677774527065 has 8 divisors (see below), whose sum is σ = 20501459418888. Its totient is φ = 13016799630720.

The previous prime is 16677774527059. The next prime is 16677774527087. The reversal of 16677774527065 is 56072547777661.

16677774527065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2311461081801 + 14366313445264 = 1520349^2 + 3790292^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16677774527065 - 2⁵ = 16677774527033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16677774526985 and 16677774527003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40677498642 + ... + 40677499051.

It is an arithmetic number, because the mean of its divisors is an integer number (2562682427361).

Almost surely, 2^{16677774527065} is an apocalyptic number.

It is an amenable number.

16677774527065 is a deficient number, since it is larger than the sum of its proper divisors (3823684891823).

16677774527065 is an equidigital number, since it uses as much as digits as its factorization.

16677774527065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81354997739.

The product of its (nonzero) digits is 726062400, while the sum is 70.

The spelling of 16677774527065 in words is "sixteen trillion, six hundred seventy-seven billion, seven hundred seventy-four million, five hundred twenty-seven thousand, sixty-five".