12440112545 has 16 divisors (see below), whose sum is σ = 17159351040. Its totient is φ = 8481050304.

The previous prime is 12440112523. The next prime is 12440112599. The reversal of 12440112545 is 54521104421.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12440112545 - 2¹⁴ = 12440096161 is a prime.

It is a super-3 number, since 3×12440112545³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1021205 + ... + 1033314.

It is an arithmetic number, because the mean of its divisors is an integer number (1072459440).

Almost surely, 2^12440112545 is an apocalyptic number.

It is an amenable number.

12440112545 is a deficient number, since it is larger than the sum of its proper divisors (4719238495).

12440112545 is a wasteful number, since it uses less digits than its factorization.

12440112545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054704.

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 12440112545 its reverse (54521104421), we get a palindrome (66961216966).

The spelling of 12440112545 in words is "twelve billion, four hundred forty million, one hundred twelve thousand, five hundred forty-five".