16220404146 has 8 divisors (see below), whose sum is σ = 32440808304. Its totient is φ = 5406801380.

The previous prime is 16220404129. The next prime is 16220404171. The reversal of 16220404146 is 64140402261.

It is a happy number.

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

16220404146 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1351700340 + ... + 1351700351.

It is an arithmetic number, because the mean of its divisors is an integer number (4055101038).

Almost surely, 2^16220404146 is an apocalyptic number.

16220404146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16220404146 is a wasteful number, since it uses less digits than its factorization.

16220404146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2703400696.

The product of its (nonzero) digits is 9216, while the sum is 30.

The spelling of 16220404146 in words is "sixteen billion, two hundred twenty million, four hundred four thousand, one hundred forty-six".