12035405550 has 96 divisors (see below), whose sum is σ = 34146243072. Its totient is φ = 2748170880.

The previous prime is 12035405549. The next prime is 12035405563. The reversal of 12035405550 is 5550453021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1142407 + ... + 1152893.

It is an arithmetic number, because the mean of its divisors is an integer number (355690032).

Almost surely, 2^12035405550 is an apocalyptic number.

12035405550 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 12035405550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17073121536).

12035405550 is an abundant number, since it is smaller than the sum of its proper divisors (22110837522).

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

12035405550 is a wasteful number, since it uses less digits than its factorization.

12035405550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11602 (or 11597 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

Adding to 12035405550 its reverse (5550453021), we get a palindrome (17585858571).

The spelling of 12035405550 in words is "twelve billion, thirty-five million, four hundred five thousand, five hundred fifty".