16416423551471 has 4 divisors (see below), whose sum is σ = 16517137806552. Its totient is φ = 16315709296392.

The previous prime is 16416423551413. The next prime is 16416423551509. The reversal of 16416423551471 is 17415532461461.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16416423551471 - 2¹⁰ = 16416423550447 is a prime.

It is a super-3 number, since 3×16416423551471³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16416423551071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50357127296 + ... + 50357127621.

It is an arithmetic number, because the mean of its divisors is an integer number (4129284451638).

Almost surely, 2^{16416423551471} is an apocalyptic number.

16416423551471 is a deficient number, since it is larger than the sum of its proper divisors (100714255081).

16416423551471 is a wasteful number, since it uses less digits than its factorization.

16416423551471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100714255080.

The product of its digits is 2419200, while the sum is 50.

The spelling of 16416423551471 in words is "sixteen trillion, four hundred sixteen billion, four hundred twenty-three million, five hundred fifty-one thousand, four hundred seventy-one".