12145441645450 has 24 divisors (see below), whose sum is σ = 23919375665772. Its totient is φ = 4572401560320.

The previous prime is 12145441645417. The next prime is 12145441645481. The reversal of 12145441645450 is 5454614454121.

It can be written as a sum of positive squares in 6 ways, for example, as 9570292900921 + 2575148744529 = 3093589^2 + 1604727^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12145441645450.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7144376589 + ... + 7144378288.

Almost surely, 2^{12145441645450} is an apocalyptic number.

12145441645450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12145441645450 is a deficient number, since it is larger than the sum of its proper divisors (11773934020322).

12145441645450 is a wasteful number, since it uses less digits than its factorization.

12145441645450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14288754906 (or 14288754901 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 46.

The spelling of 12145441645450 in words is "twelve trillion, one hundred forty-five billion, four hundred forty-one million, six hundred forty-five thousand, four hundred fifty".