16506022120 has 64 divisors (see below), whose sum is σ = 43347156480. Its totient is φ = 5538794496.

The previous prime is 16506022037. The next prime is 16506022121. The reversal of 16506022120 is 2122060561.

It is not an unprimeable number, because it can be changed into a prime (16506022121) 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, 613969 + ... + 640288.

It is an arithmetic number, because the mean of its divisors is an integer number (677299320).

Almost surely, 2^16506022120 is an apocalyptic number.

16506022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16506022120 is an abundant number, since it is smaller than the sum of its proper divisors (26841134360).

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

16506022120 is a wasteful number, since it uses less digits than its factorization.

16506022120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254322 (or 1254318 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 16506022120 its reverse (2122060561), we get a palindrome (18628082681).

The spelling of 16506022120 in words is "sixteen billion, five hundred six million, twenty-two thousand, one hundred twenty".