16289468550 has 336 divisors, whose sum is σ = 49019213760. Its totient is φ = 4012182720.

The previous prime is 16289468543. The next prime is 16289468597. The reversal of 16289468550 is 5586498261.

16289468550 = 390² + 391² + ... + 3657².

16289468550 is a `hidden beast` number, since 1 + 6 + 2 + 89 + 4 + 6 + 8 + 550 = 666.

16289468550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 29779377 + ... + 29779923.

Almost surely, 2^16289468550 is an apocalyptic number.

16289468550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16289468550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24509606880).

16289468550 is an abundant number, since it is smaller than the sum of its proper divisors (32729745210).

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

16289468550 is a wasteful number, since it uses less digits than its factorization.

16289468550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639 (or 619 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 16289468550 in words is "sixteen billion, two hundred eighty-nine million, four hundred sixty-eight thousand, five hundred fifty".