12045245550 has 48 divisors (see below), whose sum is σ = 32170076400. Its totient is φ = 2964983040.

The previous prime is 12045245483. The next prime is 12045245551. The reversal of 12045245550 is 5554254021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12045245551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3086575 + ... + 3090474.

It is an arithmetic number, because the mean of its divisors is an integer number (670209925).

Almost surely, 2^12045245550 is an apocalyptic number.

12045245550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12045245550 is an abundant number, since it is smaller than the sum of its proper divisors (20124830850).

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

12045245550 is a wasteful number, since it uses less digits than its factorization.

12045245550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6177077 (or 6177072 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 33.

Adding to 12045245550 its reverse (5554254021), we get a palindrome (17599499571).

The spelling of 12045245550 in words is "twelve billion, forty-five million, two hundred forty-five thousand, five hundred fifty".