12545201444 has 6 divisors (see below), whose sum is σ = 21954102534. Its totient is φ = 6272600720.

The previous prime is 12545201399. The next prime is 12545201477. The reversal of 12545201444 is 44410254521.

It can be written as a sum of positive squares in only one way, i.e., 8857068544 + 3688132900 = 94112^2 + 60730^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12545201444.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1568150177 + ... + 1568150184.

It is an arithmetic number, because the mean of its divisors is an integer number (3659017089).

Almost surely, 2^12545201444 is an apocalyptic number.

It is an amenable number.

12545201444 is a deficient number, since it is larger than the sum of its proper divisors (9408901090).

12545201444 is a wasteful number, since it uses less digits than its factorization.

12545201444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3136300365 (or 3136300363 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 12545201444 its reverse (44410254521), we get a palindrome (56955455965).

The spelling of 12545201444 in words is "twelve billion, five hundred forty-five million, two hundred one thousand, four hundred forty-four".