16604063465657 has 8 divisors (see below), whose sum is σ = 16853559633600. Its totient is φ = 16354616542704.

The previous prime is 16604063465629. The next prime is 16604063465827. The reversal of 16604063465657 is 75656436040661.

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

It is a cyclic number.

It is not a de Polignac number, because 16604063465657 - 2¹² = 16604063461561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16604063465596 and 16604063465605.

It is not an unprimeable number, because it can be changed into a prime (16604063465617) 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 7 ways as a sum of consecutive naturals, for example, 11631557 + ... + 12980802.

It is an arithmetic number, because the mean of its divisors is an integer number (2106694954200).

Almost surely, 2^{16604063465657} is an apocalyptic number.

It is an amenable number.

16604063465657 is a deficient number, since it is larger than the sum of its proper divisors (249496167943).

16604063465657 is a wasteful number, since it uses less digits than its factorization.

16604063465657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24622495.

The product of its (nonzero) digits is 65318400, while the sum is 59.

The spelling of 16604063465657 in words is "sixteen trillion, six hundred four billion, sixty-three million, four hundred sixty-five thousand, six hundred fifty-seven".