16220649142 has 8 divisors (see below), whose sum is σ = 24332194656. Its totient is φ = 8109917592.

The previous prime is 16220649097. The next prime is 16220649143. The reversal of 16220649142 is 24194602261.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16220649143) 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, 150958 + ... + 235009.

It is an arithmetic number, because the mean of its divisors is an integer number (3041524332).

Almost surely, 2^16220649142 is an apocalyptic number.

16220649142 is a deficient number, since it is larger than the sum of its proper divisors (8111545514).

16220649142 is a wasteful number, since it uses less digits than its factorization.

16220649142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406982.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 16220649142 in words is "sixteen billion, two hundred twenty million, six hundred forty-nine thousand, one hundred forty-two".