16640234026 has 16 divisors (see below), whose sum is σ = 26882551584. Its totient is φ = 7679487024.

The previous prime is 16640234011. The next prime is 16640234057. The reversal of 16640234026 is 62043204661.

It is a junction number, because it is equal to n+sod(n) for n = 16640233982 and 16640234000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515865 + ... + 547171.

It is an arithmetic number, because the mean of its divisors is an integer number (1680159474).

Almost surely, 2^16640234026 is an apocalyptic number.

16640234026 is a deficient number, since it is larger than the sum of its proper divisors (10242317558).

16640234026 is a wasteful number, since it uses less digits than its factorization.

16640234026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51765.

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 16640234026 its reverse (62043204661), we get a palindrome (78683438687).

The spelling of 16640234026 in words is "sixteen billion, six hundred forty million, two hundred thirty-four thousand, twenty-six".