16550009356608 has 3360 divisors, whose sum is σ = 68311030824960. Its totient is φ = 3910952263680.

The previous prime is 16550009356607. The next prime is 16550009356613. The reversal of 16550009356608 is 80665390005561.

It is a happy number.

It is a super-2 number, since 2×16550009356608² (a number of 27 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16550009356607) by changing a digit.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 130315034241 + ... + 130315034367.

It is an arithmetic number, because the mean of its divisors is an integer number (20330663936).

Almost surely, 2^{16550009356608} is an apocalyptic number.

16550009356608 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16550009356608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34155515412480).

16550009356608 is an abundant number, since it is smaller than the sum of its proper divisors (51761021468352).

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

16550009356608 is a wasteful number, since it uses less digits than its factorization.

16550009356608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 54.

The spelling of 16550009356608 in words is "sixteen trillion, five hundred fifty billion, nine million, three hundred fifty-six thousand, six hundred eight".