16263456043 has 4 divisors (see below), whose sum is σ = 16391514880. Its totient is φ = 16135397208.

The previous prime is 16263455951. The next prime is 16263456073. The reversal of 16263456043 is 34065436261.

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: 34065436261 = 149 ⋅228627089.

It is a cyclic number.

It is not a de Polignac number, because 16263456043 - 2⁹ = 16263455531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16263455987 and 16263456005.

It is not an unprimeable number, because it can be changed into a prime (16263456073) 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, 64029228 + ... + 64029481.

It is an arithmetic number, because the mean of its divisors is an integer number (4097878720).

Almost surely, 2^16263456043 is an apocalyptic number.

16263456043 is a deficient number, since it is larger than the sum of its proper divisors (128058837).

16263456043 is a wasteful number, since it uses less digits than its factorization.

16263456043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128058836.

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 16263456043 in words is "sixteen billion, two hundred sixty-three million, four hundred fifty-six thousand, forty-three".