16442513169 has 16 divisors (see below), whose sum is σ = 23220006912. Its totient is φ = 10313739008.

The previous prime is 16442513167. The next prime is 16442513173. The reversal of 16442513169 is 96131524461.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 16442513169 - 2¹ = 16442513167 is a prime.

It is a super-3 number, since 3×16442513169³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 16442513169.

It is not an unprimeable number, because it can be changed into a prime (16442513167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126832 + ... + 221294.

It is an arithmetic number, because the mean of its divisors is an integer number (1451250432).

Almost surely, 2^16442513169 is an apocalyptic number.

It is an amenable number.

16442513169 is a deficient number, since it is larger than the sum of its proper divisors (6777493743).

16442513169 is a wasteful number, since it uses less digits than its factorization.

16442513169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97896.

The product of its digits is 155520, while the sum is 42.

The spelling of 16442513169 in words is "sixteen billion, four hundred forty-two million, five hundred thirteen thousand, one hundred sixty-nine".