16425433259 has 4 divisors (see below), whose sum is σ = 16428510504. Its totient is φ = 16422356016.

The previous prime is 16425433247. The next prime is 16425433267. The reversal of 16425433259 is 95233452461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95233452461 = 7 ⋅13604778923.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16425433259 is a prime.

It is a super-2 number, since 2×16425433259² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16425433289) 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, 1530602 + ... + 1541295.

It is an arithmetic number, because the mean of its divisors is an integer number (4107127626).

Almost surely, 2^16425433259 is an apocalyptic number.

16425433259 is a deficient number, since it is larger than the sum of its proper divisors (3077245).

16425433259 is an equidigital number, since it uses as much as digits as its factorization.

16425433259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3077244.

The product of its digits is 777600, while the sum is 44.

The spelling of 16425433259 in words is "sixteen billion, four hundred twenty-five million, four hundred thirty-three thousand, two hundred fifty-nine".