16143534433 has 16 divisors (see below), whose sum is σ = 18306191680. Its totient is φ = 14112926784.

The previous prime is 16143534427. The next prime is 16143534529. The reversal of 16143534433 is 33443534161.

It is a cyclic number.

It is not a de Polignac number, because 16143534433 - 2²⁵ = 16109980001 is a prime.

It is a super-2 number, since 2×16143534433² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16143534392 and 16143534401.

It is not an unprimeable number, because it can be changed into a prime (16143534133) 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, 943210 + ... + 960172.

It is an arithmetic number, because the mean of its divisors is an integer number (1144136980).

Almost surely, 2^16143534433 is an apocalyptic number.

16143534433 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16143534433 is a deficient number, since it is larger than the sum of its proper divisors (2162657247).

16143534433 is a wasteful number, since it uses less digits than its factorization.

16143534433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20848.

The product of its digits is 155520, while the sum is 37.

The spelling of 16143534433 in words is "sixteen billion, one hundred forty-three million, five hundred thirty-four thousand, four hundred thirty-three".