16320046606657 has 6 divisors (see below), whose sum is σ = 17224204313778. Its totient is φ = 15461096784912.

The previous prime is 16320046606649. The next prime is 16320046606709. The reversal of 16320046606657 is 75660664002361.

It can be written as a sum of positive squares in only one way, i.e., 16285453954576 + 34592652081 = 4035524^2 + 185991^2 .

It is not a de Polignac number, because 16320046606657 - 2³ = 16320046606649 is a prime.

It is a super-3 number, since 3×16320046606657³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16320046606607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22603942308 + ... + 22603943029.

It is an arithmetic number, because the mean of its divisors is an integer number (2870700718963).

Almost surely, 2^{16320046606657} is an apocalyptic number.

It is an amenable number.

16320046606657 is a deficient number, since it is larger than the sum of its proper divisors (904157707121).

16320046606657 is an equidigital number, since it uses as much as digits as its factorization.

16320046606657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45207885375 (or 45207885356 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 52.

The spelling of 16320046606657 in words is "sixteen trillion, three hundred twenty billion, forty-six million, six hundred six thousand, six hundred fifty-seven".