16661176420325 has 24 divisors (see below), whose sum is σ = 20786059607040. Its totient is φ = 13247540360000.

The previous prime is 16661176420289. The next prime is 16661176420333. The reversal of 16661176420325 is 52302467116661.

It is not a de Polignac number, because 16661176420325 - 2¹⁴ = 16661176403941 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 35256956 + ... + 35726394.

It is an arithmetic number, because the mean of its divisors is an integer number (866085816960).

Almost surely, 2^{16661176420325} is an apocalyptic number.

It is an amenable number.

16661176420325 is a deficient number, since it is larger than the sum of its proper divisors (4124883186715).

16661176420325 is a wasteful number, since it uses less digits than its factorization.

16661176420325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478117 (or 478112 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 16661176420325 in words is "sixteen trillion, six hundred sixty-one billion, one hundred seventy-six million, four hundred twenty thousand, three hundred twenty-five".