16426111642 has 8 divisors (see below), whose sum is σ = 24665692500. Its totient is φ = 8204214144.

The previous prime is 16426111619. The next prime is 16426111649. The reversal of 16426111642 is 24611162461.

It can be written as a sum of positive squares in 2 ways, for example, as 14421848281 + 2004263361 = 120091^2 + 44769^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 16426111598 and 16426111607.

It is not an unprimeable number, because it can be changed into a prime (16426111649) 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, 4418517 + ... + 4422232.

Almost surely, 2^16426111642 is an apocalyptic number.

16426111642 is a deficient number, since it is larger than the sum of its proper divisors (8239580858).

16426111642 is an equidigital number, since it uses as much as digits as its factorization.

16426111642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8841680.

The product of its digits is 13824, while the sum is 34.

The spelling of 16426111642 in words is "sixteen billion, four hundred twenty-six million, one hundred eleven thousand, six hundred forty-two".