15120145440244 has 24 divisors (see below), whose sum is σ = 29158348456160. Its totient is φ = 6816237299424.

The previous prime is 15120145440223. The next prime is 15120145440263. The reversal of 15120145440244 is 44204454102151.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3381067854 + ... + 3381072325.

Almost surely, 2^{15120145440244} is an apocalyptic number.

It is an amenable number.

15120145440244 is a deficient number, since it is larger than the sum of its proper divisors (14038203015916).

15120145440244 is a wasteful number, since it uses less digits than its factorization.

15120145440244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6762140239 (or 6762140237 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 37.

Adding to 15120145440244 its reverse (44204454102151), we get a palindrome (59324599542395).

The spelling of 15120145440244 in words is "fifteen trillion, one hundred twenty billion, one hundred forty-five million, four hundred forty thousand, two hundred forty-four".