16404266505143 has 4 divisors (see below), whose sum is σ = 17895563460168. Its totient is φ = 14912969550120.

The previous prime is 16404266505127. The next prime is 16404266505169. The reversal of 16404266505143 is 34150566240461.

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 16404266505143 - 2⁴ = 16404266505127 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 (16404266505343) 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, 745648477496 + ... + 745648477517.

It is an arithmetic number, because the mean of its divisors is an integer number (4473890865042).

Almost surely, 2^{16404266505143} is an apocalyptic number.

16404266505143 is a deficient number, since it is larger than the sum of its proper divisors (1491296955025).

16404266505143 is a wasteful number, since it uses less digits than its factorization.

16404266505143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491296955024.

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 16404266505143 in words is "sixteen trillion, four hundred four billion, two hundred sixty-six million, five hundred five thousand, one hundred forty-three".