16006423234 has 4 divisors (see below), whose sum is σ = 24009634854. Its totient is φ = 8003211616.

The previous prime is 16006423229. The next prime is 16006423271. The reversal of 16006423234 is 43232460061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8611283209 + 7395140025 = 92797^2 + 85995^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 16006423196 and 16006423205.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4001605807 + ... + 4001605810.

Almost surely, 2^16006423234 is an apocalyptic number.

16006423234 is a deficient number, since it is larger than the sum of its proper divisors (8003211620).

16006423234 is an equidigital number, since it uses as much as digits as its factorization.

16006423234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8003211619.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 16006423234 its reverse (43232460061), we get a palindrome (59238883295).

The spelling of 16006423234 in words is "sixteen billion, six million, four hundred twenty-three thousand, two hundred thirty-four".