16654809220 has 96 divisors (see below), whose sum is σ = 44163076608. Its totient is φ = 5140641792.

The previous prime is 16654809217. The next prime is 16654809239. The reversal of 16654809220 is 2290845661.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97387 + ... + 206866.

It is an arithmetic number, because the mean of its divisors is an integer number (460032048).

Almost surely, 2^16654809220 is an apocalyptic number.

16654809220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16654809220 is an abundant number, since it is smaller than the sum of its proper divisors (27508267388).

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

16654809220 is a wasteful number, since it uses less digits than its factorization.

16654809220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304309 (or 304307 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 16654809220 in words is "sixteen billion, six hundred fifty-four million, eight hundred nine thousand, two hundred twenty".