16478318550 has 48 divisors (see below), whose sum is σ = 40877932752. Its totient is φ = 4392960000.

The previous prime is 16478318497. The next prime is 16478318599. The reversal of 16478318550 is 5581387461.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16478318550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 586422 + ... + 613878.

It is an arithmetic number, because the mean of its divisors is an integer number (851623599).

Almost surely, 2^16478318550 is an apocalyptic number.

16478318550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16478318550 is an abundant number, since it is smaller than the sum of its proper divisors (24399614202).

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

16478318550 is a wasteful number, since it uses less digits than its factorization.

16478318550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31473 (or 31468 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 48.

The spelling of 16478318550 in words is "sixteen billion, four hundred seventy-eight million, three hundred eighteen thousand, five hundred fifty".