16226091920 has 40 divisors (see below), whose sum is σ = 38942626560. Its totient is φ = 6281066880.

The previous prime is 16226091901. The next prime is 16226091929. The reversal of 16226091920 is 2919062261.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (16226091929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3268910 + ... + 3273869.

It is an arithmetic number, because the mean of its divisors is an integer number (973565664).

Almost surely, 2^16226091920 is an apocalyptic number.

16226091920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16226091920 is an abundant number, since it is smaller than the sum of its proper divisors (22716534640).

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

16226091920 is a wasteful number, since it uses less digits than its factorization.

16226091920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6542823 (or 6542817 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 16226091920 in words is "sixteen billion, two hundred twenty-six million, ninety-one thousand, nine hundred twenty".