16442670144165 has 32 divisors (see below), whose sum is σ = 26366229903360. Its totient is φ = 8750114600256.

The previous prime is 16442670144163. The next prime is 16442670144167. The reversal of 16442670144165 is 56144107624461.

It is an interprime number because it is at equal distance from previous prime (16442670144163) and next prime (16442670144167).

It is not a de Polignac number, because 16442670144165 - 2¹ = 16442670144163 is a prime.

It is a super-3 number, since 3×16442670144165³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442670144163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26864616 + ... + 27469854.

It is an arithmetic number, because the mean of its divisors is an integer number (823944684480).

Almost surely, 2^{16442670144165} is an apocalyptic number.

16442670144165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16442670144165 is a deficient number, since it is larger than the sum of its proper divisors (9923559759195).

16442670144165 is a wasteful number, since it uses less digits than its factorization.

16442670144165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609233.

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 16442670144165 in words is "sixteen trillion, four hundred forty-two billion, six hundred seventy million, one hundred forty-four thousand, one hundred sixty-five".