16155368220 has 24 divisors (see below), whose sum is σ = 45235031184. Its totient is φ = 4308098176.

The previous prime is 16155368219. The next prime is 16155368261. The reversal of 16155368220 is 2286355161.

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, 134628009 + ... + 134628128.

It is an arithmetic number, because the mean of its divisors is an integer number (1884792966).

Almost surely, 2^16155368220 is an apocalyptic number.

16155368220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16155368220 is an abundant number, since it is smaller than the sum of its proper divisors (29079662964).

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

16155368220 is a wasteful number, since it uses less digits than its factorization.

16155368220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269256149 (or 269256147 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 16155368220 in words is "sixteen billion, one hundred fifty-five million, three hundred sixty-eight thousand, two hundred twenty".