16661313113267 has 16 divisors (see below), whose sum is σ = 17271380597760. Its totient is φ = 16064558630400.

The previous prime is 16661313113171. The next prime is 16661313113279. The reversal of 16661313113267 is 76231131316661.

It is a cyclic number.

It is not a de Polignac number, because 16661313113267 - 2¹⁰ = 16661313112243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16661313113297) 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 15 ways as a sum of consecutive naturals, for example, 9495659 + ... + 11112612.

It is an arithmetic number, because the mean of its divisors is an integer number (1079461287360).

Almost surely, 2^{16661313113267} is an apocalyptic number.

16661313113267 is a deficient number, since it is larger than the sum of its proper divisors (610067484493).

16661313113267 is a wasteful number, since it uses less digits than its factorization.

16661313113267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20608594.

The product of its digits is 489888, while the sum is 47.

The spelling of 16661313113267 in words is "sixteen trillion, six hundred sixty-one billion, three hundred thirteen million, one hundred thirteen thousand, two hundred sixty-seven".