16455415220 has 12 divisors (see below), whose sum is σ = 34556372004. Its totient is φ = 6582166080.

The previous prime is 16455415169. The next prime is 16455415241. The reversal of 16455415220 is 2251455461.

It can be written as a sum of positive squares in 2 ways, for example, as 6729905296 + 9725509924 = 82036^2 + 98618^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411385361 + ... + 411385400.

It is an arithmetic number, because the mean of its divisors is an integer number (2879697667).

Almost surely, 2^16455415220 is an apocalyptic number.

16455415220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16455415220 is an abundant number, since it is smaller than the sum of its proper divisors (18100956784).

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

16455415220 is a wasteful number, since it uses less digits than its factorization.

16455415220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822770770 (or 822770768 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The spelling of 16455415220 in words is "sixteen billion, four hundred fifty-five million, four hundred fifteen thousand, two hundred twenty".