16700267170421 has 16 divisors (see below), whose sum is σ = 17494105120128. Its totient is φ = 15912161126400.

The previous prime is 16700267170409. The next prime is 16700267170453. The reversal of 16700267170421 is 12407176200761.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16700267170421 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 (16700267170021) 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, 7468901 + ... + 9443781.

It is an arithmetic number, because the mean of its divisors is an integer number (1093381570008).

Almost surely, 2^{16700267170421} is an apocalyptic number.

It is an amenable number.

16700267170421 is a deficient number, since it is larger than the sum of its proper divisors (793837949707).

16700267170421 is a wasteful number, since it uses less digits than its factorization.

16700267170421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976332.

The product of its (nonzero) digits is 197568, while the sum is 44.

The spelling of 16700267170421 in words is "sixteen trillion, seven hundred billion, two hundred sixty-seven million, one hundred seventy thousand, four hundred twenty-one".