16777020220 has 24 divisors (see below), whose sum is σ = 35358944544. Its totient is φ = 6686579136.

The previous prime is 16777020179. The next prime is 16777020257. The reversal of 16777020220 is 2202077761.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1508632 + ... + 1519711.

It is an arithmetic number, because the mean of its divisors is an integer number (1473289356).

Almost surely, 2^16777020220 is an apocalyptic number.

16777020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16777020220 is an abundant number, since it is smaller than the sum of its proper divisors (18581924324).

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

16777020220 is a wasteful number, since it uses less digits than its factorization.

16777020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3028629 (or 3028627 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 34.

Adding to 16777020220 its reverse (2202077761), we get a palindrome (18979097981).

The spelling of 16777020220 in words is "sixteen billion, seven hundred seventy-seven million, twenty thousand, two hundred twenty".