16431426631333 has 8 divisors (see below), whose sum is σ = 18780871317120. Its totient is φ = 14082506451600.

The previous prime is 16431426631271. The next prime is 16431426631349. The reversal of 16431426631333 is 33313662413461.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16431426631333 - 2³⁷ = 16293987677861 is a prime.

It is a super-2 number, since 2×16431426631333² (a number of 27 digits) contains 22 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 (16431426634333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131059378 + ... + 131184691.

It is an arithmetic number, because the mean of its divisors is an integer number (2347608914640).

Almost surely, 2^{16431426631333} is an apocalyptic number.

It is an amenable number.

16431426631333 is a deficient number, since it is larger than the sum of its proper divisors (2349444685787).

16431426631333 is an equidigital number, since it uses as much as digits as its factorization.

16431426631333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262253027.

The product of its digits is 1679616, while the sum is 46.

The spelling of 16431426631333 in words is "sixteen trillion, four hundred thirty-one billion, four hundred twenty-six million, six hundred thirty-one thousand, three hundred thirty-three".