15440020532012 has 12 divisors (see below), whose sum is σ = 27891649993536. Its totient is φ = 7470977676720.

The previous prime is 15440020532009. The next prime is 15440020532021. The reversal of 15440020532012 is 21023502004451.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62258147183 + ... + 62258147430.

It is an arithmetic number, because the mean of its divisors is an integer number (2324304166128).

Almost surely, 2^{15440020532012} is an apocalyptic number.

It is an amenable number.

15440020532012 is a deficient number, since it is larger than the sum of its proper divisors (12451629461524).

15440020532012 is a wasteful number, since it uses less digits than its factorization.

15440020532012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124516294648 (or 124516294646 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 15440020532012 its reverse (21023502004451), we get a palindrome (36463522536463).

The spelling of 15440020532012 in words is "fifteen trillion, four hundred forty billion, twenty million, five hundred thirty-two thousand, twelve".