16855011870623 has 16 divisors (see below), whose sum is σ = 17295957387072. Its totient is φ = 16415511168000.

The previous prime is 16855011870617. The next prime is 16855011870629. The reversal of 16855011870623 is 32607811055861.

It is an interprime number because it is at equal distance from previous prime (16855011870617) and next prime (16855011870629).

It is a cyclic number.

It is not a de Polignac number, because 16855011870623 - 2²² = 16855007676319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16855011870629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57721478 + ... + 58012748.

It is an arithmetic number, because the mean of its divisors is an integer number (1080997336692).

Almost surely, 2^{16855011870623} is an apocalyptic number.

16855011870623 is a deficient number, since it is larger than the sum of its proper divisors (440945516449).

16855011870623 is a wasteful number, since it uses less digits than its factorization.

16855011870623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293746.

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 16855011870623 in words is "sixteen trillion, eight hundred fifty-five billion, eleven million, eight hundred seventy thousand, six hundred twenty-three".