16646226042 has 32 divisors (see below), whose sum is σ = 33868357632. Its totient is φ = 5453575344.

The previous prime is 16646226041. The next prime is 16646226043. The reversal of 16646226042 is 24062264661.

It is an interprime number because it is at equal distance from previous prime (16646226041) and next prime (16646226043).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (16646226041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20548 + ... + 183615.

It is an arithmetic number, because the mean of its divisors is an integer number (1058386176).

Almost surely, 2^16646226042 is an apocalyptic number.

16646226042 is an abundant number, since it is smaller than the sum of its proper divisors (17222131590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16646226042 is a wasteful number, since it uses less digits than its factorization.

16646226042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204402.

The product of its (nonzero) digits is 165888, while the sum is 39.

The spelling of 16646226042 in words is "sixteen billion, six hundred forty-six million, two hundred twenty-six thousand, forty-two".